[Webkit-unassigned] [Bug 225290] New: Safari will use older UA while receiving 301 redirect

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=225290

            Bug ID: 225290
           Summary: Safari will use older UA while receiving 301 redirect
           Product: WebKit
           Version: Safari 14
          Hardware: iPhone / iPad
                OS: iOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore JavaScript
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jokeygeek at gmail.com

Created attachment 427538

  --> https://bugs.webkit.org/attachment.cgi?id=427538&action=review

Request-UA-changed

Hi,

We found that Safari will cache the request header and use it next time but the UA might be the older version.
e.g. 14.0.3 Safari is correct UA but somehow will use 14.0.1

Seems if we visited the website before and received the 301 redirect with Safari 14.0.1, the request header will be cached and be used in next time even already upgraded to Safari 14.0.3.

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