[Webkit-unassigned] [Bug 245103] New: REGRESSION: Infinite stylesheet loading loop (304 not modified) on My Social Security website

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245103

            Bug ID: 245103
           Summary: REGRESSION: Infinite stylesheet loading loop (304 not
                    modified) on My Social Security website
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: timdream at gmail.com

STR:

1. Log into https://secure.ssa.gov/myssa/bec-plan-prep-ui/bec-home (you would need to be a US taxpayer with a my social security online account)
2. Click on the link [Your Social Security Statement] to be taken to https://secure.ssa.gov/myssa/myssa-statement-ui/home

Expected:

1. I can see the UI to download my social security statement.

Actual:

1. The page takes forever to load, upon inspecting network requests in Developer Tools I can see it keeps downloading https://secure.ssa.gov/myssa/myssa-statement-ui/styles.fe5347e5026e93ca.css

Note:

1. Page look normal after some time but the download loop will still continue.

REGRESSION, does not repro in Safari release (Version 15.6.1 (17613.3.9.1.16)) but repro in STP (Release 153 (Safari 16.0, WebKit 17615.1.4.1))

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