View File Broken in Firefox #4178

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It seems that the view file link is broken on GitHub in Firefox. For instance:

• Go here: https://github.com/kubernetes/kubernetes/pull/100658/files
• Click on the 3 dots on the first file to open the menu.
• Click view file.

Instead of directing you to the file in the branch, it looks like it's skipping the branch in the URL (github.com/AlexeyPerevalov/kubernetes/blob//pkg/scheduler/testing/wrappers.go)

This results in a 404

If I populate the branch in the URL: github.com/AlexeyPerevalov/kubernetes/blob/AddLimitsToReq/pkg/scheduler/testing/wrappers.go then it works.

If I disable refined-github, the link starts working

Looking in the console, I see:

state is null global.js:344
[Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIDOMWindowUtils.addSheet]"  nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)"  location: "JS frame :: resource://gre/modules/ExtensionCommon.jsm :: runSafeSyncWithoutClone :: line 74"  data: no] ExtensionCommon.jsm:74:12
TypeError: i.default.detectStore(...) is undefined h1-check.js:1:1301
GEThttps://github.com/AlexeyPerevalov/kubernetes/blob//pkg/scheduler/testing/wrappers.go
[HTTP/2 404 Not Found 226ms]

[Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIDOMWindowUtils.addSheet]"  nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)"  location: "JS frame :: resource://gre/modules/ExtensionCommon.jsm :: runSafeSyncWithoutClone :: line 74"  data: no] ExtensionCommon.jsm:74:12
TypeError: i.default.detectStore(...) is undefined h1-check.js:1:1301
XHRHEADhttps://github.com/AlexeyPerevalov/kubernetes/tree//pkg/scheduler/testing
[HTTP/2 404 Not Found 178ms]

XHRHEADhttps://github.com/AlexeyPerevalov/kubernetes/tree//pkg/scheduler
[HTTP/2 404 Not Found 171ms]

XHRHEADhttps://github.com/AlexeyPerevalov/kubernetes/tree//pkg
[HTTP/2 404 Not Found 258ms]

XHRHEADhttps://github.com/AlexeyPerevalov/kubernetes/tree/
[HTTP/2 404 Not Found 52ms]

XHRHEADhttps://github.com/AlexeyPerevalov/kubernetes/commits//pkg/scheduler/testing/wrappers.go
[HTTP/2 404 Not Found 263ms]

GEThttps://www.google.com/_/VerifiedReviewsGcrProxyUi/gen204/?tmambps=-1&rtembps=-1&rttms=-1
[HTTP/2 404 Not Found 18ms]

[Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIDOMWindowUtils.addSheet]"  nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)"  location: "JS frame :: resource://gre/modules/ExtensionCommon.jsm :: runSafeSyncWithoutClone :: line 74"  data: no]