diff --git a/app/assets/javascripts/boards/components/board_card.vue b/app/assets/javascripts/boards/components/board_card.vue
index b7d3574bc80..0398102ad02 100644
--- a/app/assets/javascripts/boards/components/board_card.vue
+++ b/app/assets/javascripts/boards/components/board_card.vue
@@ -1,78 +1,78 @@
 <script>
-/* eslint-disable vue/require-default-prop */
-import './issue_card_inner';
-import eventHub from '../eventhub';
+  /* eslint-disable vue/require-default-prop */
+  import IssueCardInner from './issue_card_inner.vue';
+  import eventHub from '../eventhub';
 
-const Store = gl.issueBoards.BoardsStore;
+  const Store = gl.issueBoards.BoardsStore;
 
-export default {
-  name: 'BoardsIssueCard',
-  components: {
-    'issue-card-inner': gl.issueBoards.IssueCardInner,
-  },
-  props: {
-    list: {
-      type: Object,
-      default: () => ({}),
+  export default {
+    name: 'BoardsIssueCard',
+    components: {
+      IssueCardInner,
     },
-    issue: {
-      type: Object,
-      default: () => ({}),
+    props: {
+      list: {
+        type: Object,
+        default: () => ({}),
+      },
+      issue: {
+        type: Object,
+        default: () => ({}),
+      },
+      issueLinkBase: {
+        type: String,
+        default: '',
+      },
+      disabled: {
+        type: Boolean,
+        default: false,
+      },
+      index: {
+        type: Number,
+        default: 0,
+      },
+      rootPath: {
+        type: String,
+        default: '',
+      },
+      groupId: {
+        type: Number,
+      },
     },
-    issueLinkBase: {
-      type: String,
-      default: '',
+    data() {
+      return {
+        showDetail: false,
+        detailIssue: Store.detail,
+      };
     },
-    disabled: {
-      type: Boolean,
-      default: false,
+    computed: {
+      issueDetailVisible() {
+        return this.detailIssue.issue && this.detailIssue.issue.id === this.issue.id;
+      },
     },
-    index: {
-      type: Number,
-      default: 0,
-    },
-    rootPath: {
-      type: String,
-      default: '',
-    },
-    groupId: {
-      type: Number,
-    },
-  },
-  data() {
-    return {
-      showDetail: false,
-      detailIssue: Store.detail,
-    };
-  },
-  computed: {
-    issueDetailVisible() {
-      return this.detailIssue.issue && this.detailIssue.issue.id === this.issue.id;
-    },
-  },
-  methods: {
-    mouseDown() {
-      this.showDetail = true;
-    },
-    mouseMove() {
-      this.showDetail = false;
-    },
-    showIssue(e) {
-      if (e.target.classList.contains('js-no-trigger')) return;
-
-      if (this.showDetail) {
+    methods: {
+      mouseDown() {
+        this.showDetail = true;
+      },
+      mouseMove() {
         this.showDetail = false;
+      },
+      showIssue(e) {
+        if (e.target.classList.contains('js-no-trigger')) return;
 
-        if (Store.detail.issue && Store.detail.issue.id === this.issue.id) {
-          eventHub.$emit('clearDetailIssue');
-        } else {
-          eventHub.$emit('newDetailIssue', this.issue);
-          Store.detail.list = this.list;
+        if (this.showDetail) {
+          this.showDetail = false;
+
+          if (Store.detail.issue && Store.detail.issue.id === this.issue.id) {
+            eventHub.$emit('clearDetailIssue');
+          } else {
+            eventHub.$emit('newDetailIssue', this.issue);
+            Store.detail.list = this.list;
+          }
         }
-      }
+      },
     },
-  },
-};
+  };
 </script>
 
 <template>
diff --git a/app/assets/javascripts/boards/components/issue_card_inner.js b/app/assets/javascripts/boards/components/issue_card_inner.js
deleted file mode 100644
index f7d7b910e2f..00000000000
--- a/app/assets/javascripts/boards/components/issue_card_inner.js
+++ /dev/null
@@ -1,196 +0,0 @@
-import $ from 'jquery';
-import Vue from 'vue';
-import UserAvatarLink from '../../vue_shared/components/user_avatar/user_avatar_link.vue';
-import eventHub from '../eventhub';
-
-const Store = gl.issueBoards.BoardsStore;
-
-window.gl = window.gl || {};
-window.gl.issueBoards = window.gl.issueBoards || {};
-
-gl.issueBoards.IssueCardInner = Vue.extend({
-  components: {
-    UserAvatarLink,
-  },
-  props: {
-    issue: {
-      type: Object,
-      required: true,
-    },
-    issueLinkBase: {
-      type: String,
-      required: true,
-    },
-    list: {
-      type: Object,
-      required: false,
-      default: () => ({}),
-    },
-    rootPath: {
-      type: String,
-      required: true,
-    },
-    updateFilters: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
-    groupId: {
-      type: Number,
-      required: false,
-      default: null,
-    },
-  },
-  data() {
-    return {
-      limitBeforeCounter: 3,
-      maxRender: 4,
-      maxCounter: 99,
-    };
-  },
-  computed: {
-    numberOverLimit() {
-      return this.issue.assignees.length - this.limitBeforeCounter;
-    },
-    assigneeCounterTooltip() {
-      return `${this.assigneeCounterLabel} more`;
-    },
-    assigneeCounterLabel() {
-      if (this.numberOverLimit > this.maxCounter) {
-        return `${this.maxCounter}+`;
-      }
-
-      return `+${this.numberOverLimit}`;
-    },
-    shouldRenderCounter() {
-      if (this.issue.assignees.length <= this.maxRender) {
-        return false;
-      }
-
-      return this.issue.assignees.length > this.numberOverLimit;
-    },
-    issueId() {
-      if (this.issue.iid) {
-        return `#${this.issue.iid}`;
-      }
-      return false;
-    },
-    showLabelFooter() {
-      return this.issue.labels.find(l => this.showLabel(l)) !== undefined;
-    },
-  },
-  methods: {
-    isIndexLessThanlimit(index) {
-      return index < this.limitBeforeCounter;
-    },
-    shouldRenderAssignee(index) {
-      // Eg. maxRender is 4,
-      // Render up to all 4 assignees if there are only 4 assigness
-      // Otherwise render up to the limitBeforeCounter
-      if (this.issue.assignees.length <= this.maxRender) {
-        return index < this.maxRender;
-      }
-
-      return index < this.limitBeforeCounter;
-    },
-    assigneeUrl(assignee) {
-      return `${this.rootPath}${assignee.username}`;
-    },
-    assigneeUrlTitle(assignee) {
-      return `Assigned to ${assignee.name}`;
-    },
-    avatarUrlTitle(assignee) {
-      return `Avatar for ${assignee.name}`;
-    },
-    showLabel(label) {
-      if (!label.id) return false;
-      return true;
-    },
-    filterByLabel(label, e) {
-      if (!this.updateFilters) return;
-
-      const filterPath = gl.issueBoards.BoardsStore.filter.path.split('&');
-      const labelTitle = encodeURIComponent(label.title);
-      const param = `label_name[]=${labelTitle}`;
-      const labelIndex = filterPath.indexOf(param);
-      $(e.currentTarget).tooltip('hide');
-
-      if (labelIndex === -1) {
-        filterPath.push(param);
-      } else {
-        filterPath.splice(labelIndex, 1);
-      }
-
-      gl.issueBoards.BoardsStore.filter.path = filterPath.join('&');
-
-      Store.updateFiltersUrl();
-
-      eventHub.$emit('updateTokens');
-    },
-    labelStyle(label) {
-      return {
-        backgroundColor: label.color,
-        color: label.textColor,
-      };
-    },
-  },
-  template: `
-    <div>
-      <div class="board-card-header">
-        <h4 class="board-card-title">
-          <i
-            class="fa fa-eye-slash confidential-icon"
-            v-if="issue.confidential"
-            aria-hidden="true"
-          />
-          <a
-            class="js-no-trigger"
-            :href="issue.path"
-            :title="issue.title">{{ issue.title }}</a>
-          <span
-            class="board-card-number"
-            v-if="issueId"
-          >
-            {{ issue.referencePath }}
-          </span>
-        </h4>
-        <div class="board-card-assignee">
-          <user-avatar-link
-            v-for="(assignee, index) in issue.assignees"
-            :key="assignee.id"
-            v-if="shouldRenderAssignee(index)"
-            class="js-no-trigger"
-            :link-href="assigneeUrl(assignee)"
-            :img-alt="avatarUrlTitle(assignee)"
-            :img-src="assignee.avatar"
-            :tooltip-text="assigneeUrlTitle(assignee)"
-            tooltip-placement="bottom"
-          />
-          <span
-            class="avatar-counter has-tooltip"
-            :title="assigneeCounterTooltip"
-            v-if="shouldRenderCounter"
-          >
-           {{ assigneeCounterLabel }}
-          </span>
-        </div>
-      </div>
-      <div
-        class="board-card-footer"
-        v-if="showLabelFooter"
-      >
-        <button
-          class="badge color-label has-tooltip"
-          v-for="label in issue.labels"
-          type="button"
-          v-if="showLabel(label)"
-          @click="filterByLabel(label, $event)"
-          :style="labelStyle(label)"
-          :title="label.description"
-          data-container="body">
-          {{ label.title }}
-        </button>
-      </div>
-    </div>
-  `,
-});
diff --git a/app/assets/javascripts/boards/components/issue_card_inner.vue b/app/assets/javascripts/boards/components/issue_card_inner.vue
new file mode 100644
index 00000000000..a0b7fe81a4a
--- /dev/null
+++ b/app/assets/javascripts/boards/components/issue_card_inner.vue
@@ -0,0 +1,196 @@
+<script>
+  import $ from 'jquery';
+  import UserAvatarLink from '../../vue_shared/components/user_avatar/user_avatar_link.vue';
+  import eventHub from '../eventhub';
+
+  const Store = gl.issueBoards.BoardsStore;
+
+  export default {
+    components: {
+      UserAvatarLink,
+    },
+    props: {
+      issue: {
+        type: Object,
+        required: true,
+      },
+      issueLinkBase: {
+        type: String,
+        required: true,
+      },
+      list: {
+        type: Object,
+        required: false,
+        default: () => ({}),
+      },
+      rootPath: {
+        type: String,
+        required: true,
+      },
+      updateFilters: {
+        type: Boolean,
+        required: false,
+        default: false,
+      },
+      groupId: {
+        type: Number,
+        required: false,
+        default: null,
+      },
+    },
+    data() {
+      return {
+        limitBeforeCounter: 3,
+        maxRender: 4,
+        maxCounter: 99,
+      };
+    },
+    computed: {
+      numberOverLimit() {
+        return this.issue.assignees.length - this.limitBeforeCounter;
+      },
+      assigneeCounterTooltip() {
+        return `${this.assigneeCounterLabel} more`;
+      },
+      assigneeCounterLabel() {
+        if (this.numberOverLimit > this.maxCounter) {
+          return `${this.maxCounter}+`;
+        }
+
+        return `+${this.numberOverLimit}`;
+      },
+      shouldRenderCounter() {
+        if (this.issue.assignees.length <= this.maxRender) {
+          return false;
+        }
+
+        return this.issue.assignees.length > this.numberOverLimit;
+      },
+      issueId() {
+        if (this.issue.iid) {
+          return `#${this.issue.iid}`;
+        }
+        return false;
+      },
+      showLabelFooter() {
+        return this.issue.labels.find(l => this.showLabel(l)) !== undefined;
+      },
+    },
+    methods: {
+      isIndexLessThanlimit(index) {
+        return index < this.limitBeforeCounter;
+      },
+      shouldRenderAssignee(index) {
+        // Eg. maxRender is 4,
+        // Render up to all 4 assignees if there are only 4 assigness
+        // Otherwise render up to the limitBeforeCounter
+        if (this.issue.assignees.length <= this.maxRender) {
+          return index < this.maxRender;
+        }
+
+        return index < this.limitBeforeCounter;
+      },
+      assigneeUrl(assignee) {
+        return `${this.rootPath}${assignee.username}`;
+      },
+      assigneeUrlTitle(assignee) {
+        return `Assigned to ${assignee.name}`;
+      },
+      avatarUrlTitle(assignee) {
+        return `Avatar for ${assignee.name}`;
+      },
+      showLabel(label) {
+        if (!label.id) return false;
+        return true;
+      },
+      filterByLabel(label, e) {
+        if (!this.updateFilters) return;
+
+        const filterPath = gl.issueBoards.BoardsStore.filter.path.split('&');
+        const labelTitle = encodeURIComponent(label.title);
+        const param = `label_name[]=${labelTitle}`;
+        const labelIndex = filterPath.indexOf(param);
+        $(e.currentTarget).tooltip('hide');
+
+        if (labelIndex === -1) {
+          filterPath.push(param);
+        } else {
+          filterPath.splice(labelIndex, 1);
+        }
+
+        gl.issueBoards.BoardsStore.filter.path = filterPath.join('&');
+
+        Store.updateFiltersUrl();
+
+        eventHub.$emit('updateTokens');
+      },
+      labelStyle(label) {
+        return {
+          backgroundColor: label.color,
+          color: label.textColor,
+        };
+      },
+    },
+  };
+</script>
+<template>
+  <div>
+    <div class="board-card-header">
+      <h4 class="board-card-title">
+        <i
+          v-if="issue.confidential"
+          class="fa fa-eye-slash confidential-icon"
+          aria-hidden="true"
+        ></i>
+        <a
+          :href="issue.path"
+          :title="issue.title"
+          class="js-no-trigger">{{ issue.title }}</a>
+        <span
+          v-if="issueId"
+          class="board-card-number"
+        >
+          {{ issue.referencePath }}
+        </span>
+      </h4>
+      <div class="board-card-assignee">
+        <user-avatar-link
+          v-for="(assignee, index) in issue.assignees"
+          v-if="shouldRenderAssignee(index)"
+          :key="assignee.id"
+          :link-href="assigneeUrl(assignee)"
+          :img-alt="avatarUrlTitle(assignee)"
+          :img-src="assignee.avatar"
+          :tooltip-text="assigneeUrlTitle(assignee)"
+          class="js-no-trigger"
+          tooltip-placement="bottom"
+        />
+        <span
+          v-if="shouldRenderCounter"
+          :title="assigneeCounterTooltip"
+          class="avatar-counter has-tooltip"
+        >
+          {{ assigneeCounterLabel }}
+        </span>
+      </div>
+    </div>
+    <div
+      v-if="showLabelFooter"
+      class="board-card-footer"
+    >
+      <button
+        v-for="label in issue.labels"
+        v-if="showLabel(label)"
+        :key="label.id"
+        :style="labelStyle(label)"
+        :title="label.description"
+        class="badge color-label has-tooltip"
+        type="button"
+        data-container="body"
+        @click="filterByLabel(label, $event)"
+      >
+        {{ label.title }}
+      </button>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/boards/components/modal/header.js b/app/assets/javascripts/boards/components/modal/header.js
deleted file mode 100644
index cc9848058ca..00000000000
--- a/app/assets/javascripts/boards/components/modal/header.js
+++ /dev/null
@@ -1,79 +0,0 @@
-import Vue from 'vue';
-import modalFilters from './filters';
-import modalTabs from './tabs.vue';
-import ModalStore from '../../stores/modal_store';
-import modalMixin from '../../mixins/modal_mixins';
-
-gl.issueBoards.ModalHeader = Vue.extend({
-  components: {
-    modalTabs,
-    modalFilters,
-  },
-  mixins: [modalMixin],
-  props: {
-    projectId: {
-      type: Number,
-      required: true,
-    },
-    milestonePath: {
-      type: String,
-      required: true,
-    },
-    labelPath: {
-      type: String,
-      required: true,
-    },
-  },
-  data() {
-    return ModalStore.store;
-  },
-  computed: {
-    selectAllText() {
-      if (ModalStore.selectedCount() !== this.issues.length || this.issues.length === 0) {
-        return 'Select all';
-      }
-
-      return 'Deselect all';
-    },
-    showSearch() {
-      return this.activeTab === 'all' && !this.loading && this.issuesCount > 0;
-    },
-  },
-  methods: {
-    toggleAll() {
-      this.$refs.selectAllBtn.blur();
-
-      ModalStore.toggleAll();
-    },
-  },
-  template: `
-    <div>
-      <header class="add-issues-header form-actions">
-        <h2>
-          Add issues
-          <button
-            type="button"
-            class="close"
-            data-dismiss="modal"
-            aria-label="Close"
-            @click="toggleModal(false)">
-            <span aria-hidden="true">×</span>
-          </button>
-        </h2>
-      </header>
-      <modal-tabs v-if="!loading && issuesCount > 0"></modal-tabs>
-      <div
-        class="add-issues-search append-bottom-10"
-        v-if="showSearch">
-        <modal-filters :store="filter" />
-        <button
-          type="button"
-          class="btn btn-success btn-inverted prepend-left-10"
-          ref="selectAllBtn"
-          @click="toggleAll">
-          {{ selectAllText }}
-        </button>
-      </div>
-    </div>
-  `,
-});
diff --git a/app/assets/javascripts/boards/components/modal/header.vue b/app/assets/javascripts/boards/components/modal/header.vue
new file mode 100644
index 00000000000..979fb4d7199
--- /dev/null
+++ b/app/assets/javascripts/boards/components/modal/header.vue
@@ -0,0 +1,82 @@
+<script>
+  import ModalFilters from './filters';
+  import ModalTabs from './tabs.vue';
+  import ModalStore from '../../stores/modal_store';
+  import modalMixin from '../../mixins/modal_mixins';
+
+  export default {
+    components: {
+      ModalTabs,
+      ModalFilters,
+    },
+    mixins: [modalMixin],
+    props: {
+      projectId: {
+        type: Number,
+        required: true,
+      },
+      milestonePath: {
+        type: String,
+        required: true,
+      },
+      labelPath: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return ModalStore.store;
+    },
+    computed: {
+      selectAllText() {
+        if (ModalStore.selectedCount() !== this.issues.length || this.issues.length === 0) {
+          return 'Select all';
+        }
+
+        return 'Deselect all';
+      },
+      showSearch() {
+        return this.activeTab === 'all' && !this.loading && this.issuesCount > 0;
+      },
+    },
+    methods: {
+      toggleAll() {
+        this.$refs.selectAllBtn.blur();
+
+        ModalStore.toggleAll();
+      },
+    },
+  };
+</script>
+<template>
+  <div>
+    <header class="add-issues-header form-actions">
+      <h2>
+        Add issues
+        <button
+          type="button"
+          class="close"
+          data-dismiss="modal"
+          aria-label="Close"
+          @click="toggleModal(false)"
+        >
+          <span aria-hidden="true">×</span>
+        </button>
+      </h2>
+    </header>
+    <modal-tabs v-if="!loading && issuesCount > 0"/>
+    <div
+      v-if="showSearch"
+      class="add-issues-search append-bottom-10">
+      <modal-filters :store="filter" />
+      <button
+        ref="selectAllBtn"
+        type="button"
+        class="btn btn-success btn-inverted prepend-left-10"
+        @click="toggleAll"
+      >
+        {{ selectAllText }}
+      </button>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/boards/components/modal/index.js b/app/assets/javascripts/boards/components/modal/index.js
deleted file mode 100644
index 983061f52ae..00000000000
--- a/app/assets/javascripts/boards/components/modal/index.js
+++ /dev/null
@@ -1,171 +0,0 @@
-/* global ListIssue */
-
-import Vue from 'vue';
-import queryData from '~/boards/utils/query_data';
-import loadingIcon from '~/vue_shared/components/loading_icon.vue';
-import './header';
-import './list';
-import ModalFooter from './footer.vue';
-import EmptyState from './empty_state.vue';
-import ModalStore from '../../stores/modal_store';
-
-gl.issueBoards.IssuesModal = Vue.extend({
-  components: {
-    EmptyState,
-    'modal-header': gl.issueBoards.ModalHeader,
-    'modal-list': gl.issueBoards.ModalList,
-    ModalFooter,
-    loadingIcon,
-  },
-  props: {
-    newIssuePath: {
-      type: String,
-      required: true,
-    },
-    emptyStateSvg: {
-      type: String,
-      required: true,
-    },
-    issueLinkBase: {
-      type: String,
-      required: true,
-    },
-    rootPath: {
-      type: String,
-      required: true,
-    },
-    projectId: {
-      type: Number,
-      required: true,
-    },
-    milestonePath: {
-      type: String,
-      required: true,
-    },
-    labelPath: {
-      type: String,
-      required: true,
-    },
-  },
-  data() {
-    return ModalStore.store;
-  },
-  computed: {
-    showList() {
-      if (this.activeTab === 'selected') {
-        return this.selectedIssues.length > 0;
-      }
-
-      return this.issuesCount > 0;
-    },
-    showEmptyState() {
-      if (!this.loading && this.issuesCount === 0) {
-        return true;
-      }
-
-      return this.activeTab === 'selected' && this.selectedIssues.length === 0;
-    },
-  },
-  watch: {
-    page() {
-      this.loadIssues();
-    },
-    showAddIssuesModal() {
-      if (this.showAddIssuesModal && !this.issues.length) {
-        this.loading = true;
-        const loadingDone = () => {
-          this.loading = false;
-        };
-
-        this.loadIssues()
-          .then(loadingDone)
-          .catch(loadingDone);
-      } else if (!this.showAddIssuesModal) {
-        this.issues = [];
-        this.selectedIssues = [];
-        this.issuesCount = false;
-      }
-    },
-    filter: {
-      handler() {
-        if (this.$el.tagName) {
-          this.page = 1;
-          this.filterLoading = true;
-          const loadingDone = () => {
-            this.filterLoading = false;
-          };
-
-          this.loadIssues(true)
-            .then(loadingDone)
-            .catch(loadingDone);
-        }
-      },
-      deep: true,
-    },
-  },
-  created() {
-    this.page = 1;
-  },
-  methods: {
-    loadIssues(clearIssues = false) {
-      if (!this.showAddIssuesModal) return false;
-
-      return gl.boardService.getBacklog(queryData(this.filter.path, {
-        page: this.page,
-        per: this.perPage,
-      }))
-      .then(res => res.data)
-      .then((data) => {
-        if (clearIssues) {
-          this.issues = [];
-        }
-
-        data.issues.forEach((issueObj) => {
-          const issue = new ListIssue(issueObj);
-          const foundSelectedIssue = ModalStore.findSelectedIssue(issue);
-          issue.selected = !!foundSelectedIssue;
-
-          this.issues.push(issue);
-        });
-
-        this.loadingNewPage = false;
-
-        if (!this.issuesCount) {
-          this.issuesCount = data.size;
-        }
-      }).catch(() => {
-        // TODO: handle request error
-      });
-    },
-  },
-  template: `
-    <div
-      class="add-issues-modal"
-      v-if="showAddIssuesModal">
-      <div class="add-issues-container">
-        <modal-header
-          :project-id="projectId"
-          :milestone-path="milestonePath"
-          :label-path="labelPath">
-        </modal-header>
-        <modal-list
-          :issue-link-base="issueLinkBase"
-          :root-path="rootPath"
-          :empty-state-svg="emptyStateSvg"
-          v-if="!loading && showList && !filterLoading"></modal-list>
-        <empty-state
-          v-if="showEmptyState"
-          :new-issue-path="newIssuePath"
-          :empty-state-svg="emptyStateSvg"></empty-state>
-        <section
-          class="add-issues-list text-center"
-          v-if="loading || filterLoading">
-          <div class="add-issues-list-loading">
-            <loading-icon />
-          </div>
-        </section>
-        <modal-footer></modal-footer>
-      </div>
-    </div>
-  `,
-});
diff --git a/app/assets/javascripts/boards/components/modal/index.vue b/app/assets/javascripts/boards/components/modal/index.vue
new file mode 100644
index 00000000000..33e72a6782e
--- /dev/null
+++ b/app/assets/javascripts/boards/components/modal/index.vue
@@ -0,0 +1,178 @@
+<script>
+  /* global ListIssue */
+  import queryData from '~/boards/utils/query_data';
+  import loadingIcon from '~/vue_shared/components/loading_icon.vue';
+  import ModalHeader from './header.vue';
+  import ModalList from './list.vue';
+  import ModalFooter from './footer.vue';
+  import EmptyState from './empty_state.vue';
+  import ModalStore from '../../stores/modal_store';
+
+  export default {
+    components: {
+      EmptyState,
+      ModalHeader,
+      ModalList,
+      ModalFooter,
+      loadingIcon,
+    },
+    props: {
+      newIssuePath: {
+        type: String,
+        required: true,
+      },
+      emptyStateSvg: {
+        type: String,
+        required: true,
+      },
+      issueLinkBase: {
+        type: String,
+        required: true,
+      },
+      rootPath: {
+        type: String,
+        required: true,
+      },
+      projectId: {
+        type: Number,
+        required: true,
+      },
+      milestonePath: {
+        type: String,
+        required: true,
+      },
+      labelPath: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return ModalStore.store;
+    },
+    computed: {
+      showList() {
+        if (this.activeTab === 'selected') {
+          return this.selectedIssues.length > 0;
+        }
+
+        return this.issuesCount > 0;
+      },
+      showEmptyState() {
+        if (!this.loading && this.issuesCount === 0) {
+          return true;
+        }
+
+        return this.activeTab === 'selected' && this.selectedIssues.length === 0;
+      },
+    },
+    watch: {
+      page() {
+        this.loadIssues();
+      },
+      showAddIssuesModal() {
+        if (this.showAddIssuesModal && !this.issues.length) {
+          this.loading = true;
+          const loadingDone = () => {
+            this.loading = false;
+          };
+
+          this.loadIssues()
+            .then(loadingDone)
+            .catch(loadingDone);
+        } else if (!this.showAddIssuesModal) {
+          this.issues = [];
+          this.selectedIssues = [];
+          this.issuesCount = false;
+        }
+      },
+      filter: {
+        handler() {
+          if (this.$el.tagName) {
+            this.page = 1;
+            this.filterLoading = true;
+            const loadingDone = () => {
+              this.filterLoading = false;
+            };
+
+            this.loadIssues(true)
+              .then(loadingDone)
+              .catch(loadingDone);
+          }
+        },
+        deep: true,
+      },
+    },
+    created() {
+      this.page = 1;
+    },
+    methods: {
+      loadIssues(clearIssues = false) {
+        if (!this.showAddIssuesModal) return false;
+
+        return gl.boardService
+          .getBacklog(
+            queryData(this.filter.path, {
+              page: this.page,
+              per: this.perPage,
+            }),
+          )
+          .then(res => res.data)
+          .then(data => {
+            if (clearIssues) {
+              this.issues = [];
+            }
+
+            data.issues.forEach(issueObj => {
+              const issue = new ListIssue(issueObj);
+              const foundSelectedIssue = ModalStore.findSelectedIssue(issue);
+              issue.selected = !!foundSelectedIssue;
+
+              this.issues.push(issue);
+            });
+
+            this.loadingNewPage = false;
+
+            if (!this.issuesCount) {
+              this.issuesCount = data.size;
+            }
+          })
+          .catch(() => {
+            // TODO: handle request error
+          });
+      },
+    },
+  };
+</script>
+<template>
+  <div
+    v-if="showAddIssuesModal"
+    class="add-issues-modal">
+    <div class="add-issues-container">
+      <modal-header
+        :project-id="projectId"
+        :milestone-path="milestonePath"
+        :label-path="labelPath"
+      />
+      <modal-list
+        v-if="!loading && showList && !filterLoading"
+        :issue-link-base="issueLinkBase"
+        :root-path="rootPath"
+        :empty-state-svg="emptyStateSvg"
+      />
+      <empty-state
+        v-if="showEmptyState"
+        :new-issue-path="newIssuePath"
+        :empty-state-svg="emptyStateSvg"
+      />
+      <section
+        v-if="loading || filterLoading"
+        class="add-issues-list text-center"
+      >
+        <div class="add-issues-list-loading">
+          <loading-icon />
+        </div>
+      </section>
+      <modal-footer/>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/boards/components/modal/list.js b/app/assets/javascripts/boards/components/modal/list.js
deleted file mode 100644
index 11061c72a7b..00000000000
--- a/app/assets/javascripts/boards/components/modal/list.js
+++ /dev/null
@@ -1,159 +0,0 @@
-import Vue from 'vue';
-import bp from '../../../breakpoints';
-import ModalStore from '../../stores/modal_store';
-
-gl.issueBoards.ModalList = Vue.extend({
-  components: {
-    'issue-card-inner': gl.issueBoards.IssueCardInner,
-  },
-  props: {
-    issueLinkBase: {
-      type: String,
-      required: true,
-    },
-    rootPath: {
-      type: String,
-      required: true,
-    },
-    emptyStateSvg: {
-      type: String,
-      required: true,
-    },
-  },
-  data() {
-    return ModalStore.store;
-  },
-  computed: {
-    loopIssues() {
-      if (this.activeTab === 'all') {
-        return this.issues;
-      }
-
-      return this.selectedIssues;
-    },
-    groupedIssues() {
-      const groups = [];
-      this.loopIssues.forEach((issue, i) => {
-        const index = i % this.columns;
-
-        if (!groups[index]) {
-          groups.push([]);
-        }
-
-        groups[index].push(issue);
-      });
-
-      return groups;
-    },
-  },
-  watch: {
-    activeTab() {
-      if (this.activeTab === 'all') {
-        ModalStore.purgeUnselectedIssues();
-      }
-    },
-  },
-  mounted() {
-    this.scrollHandlerWrapper = this.scrollHandler.bind(this);
-    this.setColumnCountWrapper = this.setColumnCount.bind(this);
-    this.setColumnCount();
-
-    this.$refs.list.addEventListener('scroll', this.scrollHandlerWrapper);
-    window.addEventListener('resize', this.setColumnCountWrapper);
-  },
-  beforeDestroy() {
-    this.$refs.list.removeEventListener('scroll', this.scrollHandlerWrapper);
-    window.removeEventListener('resize', this.setColumnCountWrapper);
-  },
-  methods: {
-    scrollHandler() {
-      const currentPage = Math.floor(this.issues.length / this.perPage);
-
-      if (
-        this.scrollTop() > this.scrollHeight() - 100 &&
-        !this.loadingNewPage &&
-        currentPage === this.page
-      ) {
-        this.loadingNewPage = true;
-        this.page += 1;
-      }
-    },
-    toggleIssue(e, issue) {
-      if (e.target.tagName !== 'A') {
-        ModalStore.toggleIssue(issue);
-      }
-    },
-    listHeight() {
-      return this.$refs.list.getBoundingClientRect().height;
-    },
-    scrollHeight() {
-      return this.$refs.list.scrollHeight;
-    },
-    scrollTop() {
-      return this.$refs.list.scrollTop + this.listHeight();
-    },
-    showIssue(issue) {
-      if (this.activeTab === 'all') return true;
-
-      const index = ModalStore.selectedIssueIndex(issue);
-
-      return index !== -1;
-    },
-    setColumnCount() {
-      const breakpoint = bp.getBreakpointSize();
-
-      if (breakpoint === 'lg' || breakpoint === 'md') {
-        this.columns = 3;
-      } else if (breakpoint === 'sm') {
-        this.columns = 2;
-      } else {
-        this.columns = 1;
-      }
-    },
-  },
-  template: `
-    <section
-      class="add-issues-list add-issues-list-columns"
-      ref="list">
-      <div
-        class="empty-state add-issues-empty-state-filter text-center"
-        v-if="issuesCount > 0 && issues.length === 0">
-        <div
-          class="svg-content">
-          <img :src="emptyStateSvg"/>
-        </div>
-        <div class="text-content">
-          <h4>
-            There are no issues to show.
-          </h4>
-        </div>
-      </div>
-      <div
-        v-for="group in groupedIssues"
-        class="add-issues-list-column">
-        <div
-          v-for="issue in group"
-          v-if="showIssue(issue)"
-          class="board-card-parent">
-          <div
-            class="board-card"
-            :class="{ 'is-active': issue.selected }"
-            @click="toggleIssue($event, issue)">
-            <issue-card-inner
-              :issue="issue"
-              :issue-link-base="issueLinkBase"
-              :root-path="rootPath">
-            </issue-card-inner>
-            <span
-              :aria-label="'Issue #' + issue.id + ' selected'"
-              aria-checked="true"
-              v-if="issue.selected"
-              class="issue-card-selected text-center">
-              <i class="fa fa-check"></i>
-            </span>
-          </div>
-        </div>
-      </div>
-    </section>
-  `,
-});
diff --git a/app/assets/javascripts/boards/components/modal/list.vue b/app/assets/javascripts/boards/components/modal/list.vue
new file mode 100644
index 00000000000..02ac36d7367
--- /dev/null
+++ b/app/assets/javascripts/boards/components/modal/list.vue
@@ -0,0 +1,162 @@
+<script>
+  import bp from '../../../breakpoints';
+  import ModalStore from '../../stores/modal_store';
+  import IssueCardInner from '../issue_card_inner.vue';
+
+  export default {
+    components: {
+      IssueCardInner,
+    },
+    props: {
+      issueLinkBase: {
+        type: String,
+        required: true,
+      },
+      rootPath: {
+        type: String,
+        required: true,
+      },
+      emptyStateSvg: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return ModalStore.store;
+    },
+    computed: {
+      loopIssues() {
+        if (this.activeTab === 'all') {
+          return this.issues;
+        }
+
+        return this.selectedIssues;
+      },
+      groupedIssues() {
+        const groups = [];
+        this.loopIssues.forEach((issue, i) => {
+          const index = i % this.columns;
+
+          if (!groups[index]) {
+            groups.push([]);
+          }
+
+          groups[index].push(issue);
+        });
+
+        return groups;
+      },
+    },
+    watch: {
+      activeTab() {
+        if (this.activeTab === 'all') {
+          ModalStore.purgeUnselectedIssues();
+        }
+      },
+    },
+    mounted() {
+      this.scrollHandlerWrapper = this.scrollHandler.bind(this);
+      this.setColumnCountWrapper = this.setColumnCount.bind(this);
+      this.setColumnCount();
+
+      this.$refs.list.addEventListener('scroll', this.scrollHandlerWrapper);
+      window.addEventListener('resize', this.setColumnCountWrapper);
+    },
+    beforeDestroy() {
+      this.$refs.list.removeEventListener('scroll', this.scrollHandlerWrapper);
+      window.removeEventListener('resize', this.setColumnCountWrapper);
+    },
+    methods: {
+      scrollHandler() {
+        const currentPage = Math.floor(this.issues.length / this.perPage);
+
+        if (
+          this.scrollTop() > this.scrollHeight() - 100 &&
+          !this.loadingNewPage &&
+          currentPage === this.page
+        ) {
+          this.loadingNewPage = true;
+          this.page += 1;
+        }
+      },
+      toggleIssue(e, issue) {
+        if (e.target.tagName !== 'A') {
+          ModalStore.toggleIssue(issue);
+        }
+      },
+      listHeight() {
+        return this.$refs.list.getBoundingClientRect().height;
+      },
+      scrollHeight() {
+        return this.$refs.list.scrollHeight;
+      },
+      scrollTop() {
+        return this.$refs.list.scrollTop + this.listHeight();
+      },
+      showIssue(issue) {
+        if (this.activeTab === 'all') return true;
+
+        const index = ModalStore.selectedIssueIndex(issue);
+
+        return index !== -1;
+      },
+      setColumnCount() {
+        const breakpoint = bp.getBreakpointSize();
+
+        if (breakpoint === 'lg' || breakpoint === 'md') {
+          this.columns = 3;
+        } else if (breakpoint === 'sm') {
+          this.columns = 2;
+        } else {
+          this.columns = 1;
+        }
+      },
+    },
+  };
+</script>
+<template>
+  <section
+    ref="list"
+    class="add-issues-list add-issues-list-columns">
+    <div
+      v-if="issuesCount > 0 && issues.length === 0"
+      class="empty-state add-issues-empty-state-filter text-center">
+      <div
+        class="svg-content">
+        <img :src="emptyStateSvg" />
+      </div>
+      <div class="text-content">
+        <h4>
+          There are no issues to show.
+        </h4>
+      </div>
+    </div>
+    <div
+      v-for="(group, index) in groupedIssues"
+      :key="index"
+      class="add-issues-list-column">
+      <div
+        v-for="issue in group"
+        v-if="showIssue(issue)"
+        :key="issue.id"
+        class="board-card-parent">
+        <div
+          :class="{ 'is-active': issue.selected }"
+          class="board-card"
+          @click="toggleIssue($event, issue)">
+          <issue-card-inner
+            :issue="issue"
+            :issue-link-base="issueLinkBase"
+            :root-path="rootPath"/>
+          <span
+            v-if="issue.selected"
+            :aria-label="'Issue #' + issue.id + ' selected'"
+            aria-checked="true"
+            class="issue-card-selected text-center">
+            <i class="fa fa-check"></i>
+          </span>
+        </div>
+      </div>
+    </div>
+  </section>
+</template>
diff --git a/app/assets/javascripts/boards/index.js b/app/assets/javascripts/boards/index.js
index 2d9141bf71c..a5f636a1e45 100644
--- a/app/assets/javascripts/boards/index.js
+++ b/app/assets/javascripts/boards/index.js
@@ -25,7 +25,7 @@ import './filters/due_date_filters';
 import './components/board';
 import './components/board_sidebar';
 import './components/new_list_dropdown';
-import './components/modal/index';
+import BoardAddIssuesModal from './components/modal/index.vue';
 import '~/vue_shared/vue_resource_interceptor'; // eslint-disable-line import/first
 
 export default () => {
@@ -49,7 +49,7 @@ export default () => {
     components: {
       'board': gl.issueBoards.Board,
       'board-sidebar': gl.issueBoards.BoardSidebar,
-      'board-add-issues-modal': gl.issueBoards.IssuesModal,
+      BoardAddIssuesModal,
     },
     data: {
       state: Store.state,
diff --git a/spec/javascripts/boards/issue_card_spec.js b/spec/javascripts/boards/issue_card_spec.js
index 05acf903933..72e961c8a10 100644
--- a/spec/javascripts/boards/issue_card_spec.js
+++ b/spec/javascripts/boards/issue_card_spec.js
@@ -9,7 +9,7 @@ import '~/vue_shared/models/assignee';
 import '~/boards/models/issue';
 import '~/boards/models/list';
 import '~/boards/stores/boards_store';
-import '~/boards/components/issue_card_inner';
+import IssueCardInner from '~/boards/components/issue_card_inner.vue';
 import { listObj } from './mock_data';
 
 describe('Issue card component', () => {
@@ -48,7 +48,7 @@ describe('Issue card component', () => {
     component = new Vue({
       el: document.querySelector('.test-container'),
       components: {
-        'issue-card': gl.issueBoards.IssueCardInner,
+        'issue-card': IssueCardInner,
       },
       data() {
         return {