chromium/third_party/google-closure-library/closure/goog/dom/abstractrange_test_dom.html

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<iframe id="a" src='javascript:"&lt;html&gt;&lt;body contenteditable&gt;asdf"'>
</iframe>
<iframe id="b" src='javascript:"&lt;html&gt;&lt;body contenteditable&gt;asdf"'>
</iframe>
<iframe id="c" src='javascript:"&lt;html&gt;&lt;body contenteditable&gt;&lt;img&gt;"'>
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