diff --git a/lib/capybara/poltergeist/client/compiled/web_page.js b/lib/capybara/poltergeist/client/compiled/web_page.js
index 8b7198d..d3f072f 100644
--- a/lib/capybara/poltergeist/client/compiled/web_page.js
+++ b/lib/capybara/poltergeist/client/compiled/web_page.js
@@ -392,12 +392,12 @@ Poltergeist.WebPage = (function() {
   };
 
   WebPage.prototype.currentUrl = function() {
-    return this["native"]().url;
+    return this["native"]().url || this.runCommand('frameUrl');
   };
 
   WebPage.prototype.frameUrl = function() {
     if (phantom.version.major > 2 || (phantom.version.major === 2 && phantom.version.minor >= 1)) {
-      return this["native"]().frameUrl;
+      return this["native"]().frameUrl || this.runCommand('frameUrl');
     } else {
       return this.runCommand('frameUrl');
     }
diff --git a/lib/capybara/poltergeist/client/web_page.coffee b/lib/capybara/poltergeist/client/web_page.coffee
index 64d0243..45cb111 100644
--- a/lib/capybara/poltergeist/client/web_page.coffee
+++ b/lib/capybara/poltergeist/client/web_page.coffee
@@ -236,11 +236,13 @@ class Poltergeist.WebPage
     this.native().frameTitle
 
   currentUrl: ->
-    @native().url
+    # native url doesn't return anything when about:blank
+    # in that case get the frame url which will be main window
+    @native().url || @runCommand('frameUrl')
 
   frameUrl: ->
     if phantom.version.major > 2 || (phantom.version.major == 2 && phantom.version.minor >= 1)
-      @native().frameUrl
+      @native().frameUrl || @runCommand('frameUrl')
     else
       @runCommand('frameUrl')
 
diff --git a/spec/integration/session_spec.rb b/spec/integration/session_spec.rb
index f360110..fde19d4 100644
--- a/spec/integration/session_spec.rb
+++ b/spec/integration/session_spec.rb
@@ -579,6 +579,11 @@ describe Capybara::Session do
         @session.visit "/poltergeist/arbitrary_path/200/foo?a=%20%5B%5D%3A%2F%2B%26%3D"
         expect(request_uri).to eq('/poltergeist/arbitrary_path/200/foo?a=%20%5B%5D%3A%2F%2B%26%3D')
       end
+
+      it 'returns about:blank when on about:blank' do
+        @session.visit 'about:blank'
+        expect(@session.current_url).to eq('about:blank')
+      end
     end
 
     context 'dragging support' do