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Starred by 2 users
Status: Fixed
User never visited
Closed: May 2011
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 1
Type: Bug

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DNS pre-resolution was disabled in Webkit
Project Member Reported by, May 12 2011 Back to list
A change in webkit Settings.cpp created a default setting of "false" for m_dnsPrefetchingEnabled(), which in turn disabled all of DNS resolution.

What is the expected result?

a) Clear your DNS results by visiting a incognito window, and then closing it.
b) visit about:dns  (and you'll see almost no resolutions.
c) go to another tab, and do a search on google.
d) Wait until the search results render.
e) go back to about:dns tab, and refresh.  You should see a LOT of host names resolved

What happens instead?

Step (e) shows no pre-resolution performed when we load (and scan) a page.

This setting also blocks mouse-over pre-resolution, and link rel=dns-prefetch based resolution (both of which should work when this is repaired.

Note that this bug did not block pre-resolution of sub-resources, which was done without webkit interactions.

I'm only labeling this P1 because it was a large feature regression.  It is blocking work by vendors to implement/test/deploy improved page and advertisement handling (that was where I got the report).

UserAgentString: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.30 Safari/534.30

Comment 1 by, May 12 2011
Step 1 of the fix is
Comment 2 by, May 13 2011
Labels: Mstone-12 ApprovedForMerge
Comment 3 by, May 13 2011
Just to clarify: The approve to merge is for the one-line fix, changing the default value from "false" to "true" in our webkit branch for Chrome 12.
Comment 4 by, May 16 2011
Status: Fixed
Fixenated in
Project Member Comment 5 by, Oct 13 2012
Labels: Restrict-AddIssueComment-Commit
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Project Member Comment 6 by, Mar 10 2013
Labels: -Area-WebKit -Mstone-12 Cr-Content M-12
Project Member Comment 7 by, Mar 13 2013
Labels: -Restrict-AddIssueComment-Commit Restrict-AddIssueComment-EditIssue
Project Member Comment 8 by, Apr 6 2013
Labels: -Cr-Content Cr-Blink
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