tree b046e920ce6ba6f1d32e5baaab260a2309edf9a3
parent e6f6a3d3322c62780e20c93f0d0d08b67a92f373
author cdumez@apple.com <cdumez@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1562969007 +0000
committer cdumez@apple.com <cdumez@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1562969007 +0000

Regression(macOS Catalina): Cannot quick look html documents in Mail
https://bugs.webkit.org/show_bug.cgi?id=199754
<rdar://problem/51304961>

Reviewed by Geoff Garen.

If the client asks us to load a file URL but does not provide a resource path, WebKit
would fallback to issuing a sandbox extension for /. This no longer works on mac OS
Catalina and it would thus fail to load the file.

To address the issue, if the attempt to create a sandbox extension for / fails, we now
fall back to issuing one for the file's baseURL (path of containing folder).

* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::maybeInitializeSandboxExtensionHandle):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@247400 268f45cc-cd09-0410-ab3c-d52691b4dbfc