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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - top.location.assign is undefined inside non-sandboxed iframe on different origin"
href="https://bugs.webkit.org/show_bug.cgi?id=165412">165412</a>
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<th>Summary</th>
<td>top.location.assign is undefined inside non-sandboxed iframe on different origin
</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>Safari 10
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<th>Hardware</th>
<td>iPhone / iPad
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<th>OS</th>
<td>iOS 10
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Frames
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>mkhatib727@gmail.com
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<pre>top.location.assign is undefined inside an iframe. For example,
top: <a href="https://hello.com">https://hello.com</a>
iframe: <a href="https://whatsapp.com">https://whatsapp.com</a>
script loaded from: <a href="https://whatsapp.com">https://whatsapp.com</a>
executes -> window.top.location.assign('<a href="https://whatever.com">https://whatever.com</a>') // <- .assign is undefined and throws a security error
executes -> window.top.location.replace('<a href="https://whatever.com">https://whatever.com</a>') // <- .replace is NOT undefined and works as expected
executes -> window.top.location.href = '<a href="https://whatever.com">https://whatever.com</a>' // <- works as expected
Errors thrown by .assign:
window.top.location.assign is not a function. (In 'window.top.location.assign(url)', 'window.top.location.assign' is undefined)
Blocked a frame with origin '<a href="https://whatsapp">https://whatsapp</a>' from accessing a frame with origin '<a href="https://hello.com">https://hello.com</a>'. Protocols, domains, and ports must match.
The expected behavior is that .assign would still work in non-sandboxed iframes - similar to replace.</pre>
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