As discovered by flod, 404 pages like https://www.mozilla.org/fr/thunderbird/foo are broken while https://www.mozilla.org/en-US/thunderbird/foo is working.
Component: Bedrock → Legacy PHP system
Actually, not sure if broken redirect or issue in PHP system
The legacy PHP system will retire soon. Bug 1204579 should fix the issue.
Component: Legacy PHP system → Thunderbird
Depends on: 1204579
Looks like this has already been fixed in https://github.com/mozilla/bedrock/pull/3360
Status: NEW → RESOLVED
Last Resolved: 3 years ago
No longer depends on: 1204579
Resolution: --- → FIXED
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