[Webkit-unassigned] [Bug 55473] [GTK] Add support for external protocol handlers

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Mar 2 22:42:51 PST 2011


--- Comment #14 from Adam Barth <abarth at webkit.org>  2011-03-02 22:42:51 PST ---
> Just for the sake of knowing a bit more about WebCore guts, what is special about the "about:" protocol? What kind of tricky stuff does it?

Some examples:

1) Loads of about: URLs are synchronous instead of asynchronous.
2) about: URLs inherit the security context of their parent (or opener if there isn't a parent).
3) about: URLs are used internally by the WebKit in various situations where having a non-empty document would be problematic (e.g., frame initialization and in the XSS filter).

(2) is really scary if about: URLs start containing anything besides the empty document.

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