Bug 240938

Summary:	Use desktop User Agent when preconnecting for loads that are predicted to use desktop content mode
Product:	WebKit	Reporter:	Matt Woodrow <mattwoodrow>
Component:	WebKit Misc.	Assignee:	Matt Woodrow <mattwoodrow>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Matt Woodrow 2022-05-25 19:51:47 PDT

Preconnect currently requires a user agent string, and the preconnected socket will not be used if it doesn't match the UA of the HTTP request (and an HTTPS proxy is in use). When we use a desktop content mode and use the desktop UA for the request, this won't match the mobile UA used for preconnect. This improves the preconnect logic to predict the UA using the default webpage policies.

Comment 1 Matt Woodrow 2022-05-25 19:59:08 PDT

Pull request: https://github.com/WebKit/WebKit/pull/1037

Comment 2 Radar WebKit Bug Importer 2022-05-25 20:43:27 PDT

<rdar://problem/93946257>

Comment 3 EWS 2022-05-27 22:26:32 PDT

Committed r294987 (251091@main): <https://commits.webkit.org/251091@main>

Reviewed commits have been landed. Closing PR #1037 and removing active labels.