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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - img.currentSrc problem in strict mode with old picturefill"
href="https://bugs.webkit.org/show_bug.cgi?id=144095">144095</a>
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<th>Summary</th>
<td>img.currentSrc problem in strict mode with old picturefill
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>HTML DOM
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>zcorpan@gmail.com
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<pre>See <a href="https://github.com/scottjehl/picturefill/issues/478">https://github.com/scottjehl/picturefill/issues/478</a>
Microsoft discovered when implementing srcset in Project Spartan that some sites broke because they were using picturefill < 2.3.1 with "use strict" and picturefill was writing to currentSrc, which throws in strict mode. The issue has been fixed in picturefill but it's not certain all sites will upgrade in time. I think Microsoft decided to remove support for currentSrc for the time being. Alternative approaches would be to mark the property as [Replaceable] or have a no-op setter for now. Or leave it as is and evang any broken sites to upgrade picturefill.
If HTMLPictureElement is also supported, there is no issue with picturefill since it bails out early in that case. Safari 8 does not support currentSrc so this does not show up in current release.</pre>
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