Merge branch 'sh-revert-markdown-changes' into 'master'
Fix slow Markdown rendering Closes #49409 See merge request gitlab-org/gitlab-ce!20820
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---
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title: Fix slow Markdown rendering
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merge_request: 20820
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author:
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type: performance
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@ -13,7 +13,7 @@ module Banzai
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def whitelist
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strong_memoize(:whitelist) do
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customize_whitelist(super.dup)
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customize_whitelist(super.deep_dup)
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end
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end
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@ -54,6 +54,18 @@ describe Banzai::Filter::SanitizationFilter do
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expect(instance.whitelist[:transformers].size).to eq control_count
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end
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it 'customizes the whitelist only once for different instances' do
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instance1 = described_class.new('Foo1')
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instance2 = described_class.new('Foo2')
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control_count = instance1.whitelist[:transformers].size
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instance1.whitelist
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instance2.whitelist
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expect(instance1.whitelist[:transformers].size).to eq control_count
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expect(instance2.whitelist[:transformers].size).to eq control_count
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end
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it 'sanitizes `class` attribute from all elements' do
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act = %q{<pre class="code highlight white c"><code><span class="k">def</span></code></pre>}
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exp = %q{<pre><code><span class="k">def</span></code></pre>}
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