[Webkit-unassigned] [Bug 156626] Would like a way to prevent user-controlled markup from breaking out of an element

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Apr 15 08:30:34 PDT 2016


--- Comment #1 from Adam Roben (:aroben) <aroben at webkit.org> ---
Some strawman proposals:

<untrusted srcdoc="<p>HTML goes here</p>">

This is similar to <iframe srcdoc>. We'd of course have to ensure the attribute value does not contain any quotes on the server side.

<p>HTML goes here</p>

For this one to work, the parsing would need to be similar to <textarea> where it consumes all characters until the next instance of "</untrusted>". And of course we'd have to ensure to remove "</untrusted>" from the content itself on the server side.

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