ConfirmEdit hCaptcha: Set `hl` parameter to an acceptable fallback when hCaptcha does not natively support the language
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	Dreamy_Jazz
	Jul 14 2025, 7:02 PM

Description

Summary

hCaptcha currently supports several languages, but not all languages supported by WMF wikis. We should use a fallback instead of English if we are able to.

Background

hCaptcha supports many languages, but not as many as are supported by WMF wikis
If a user sees the CAPTCHA while using an unsupported language, we need to define an appropriate fallback language
- The appropriate fallback language will be the first language from LanguageFallback::getAll that is supported by hCaptcha

Acceptance criteria

The display language for hCaptcha is forced to a fallback language if hCaptcha does not support the language being used by the user

Event Timeline

Dreamy_Jazz created this task.Jul 14 2025, 7:02 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJul 14 2025, 7:02 PM

Reedy added a project: I18n.Jul 17 2025, 6:33 PM

Reedy moved this task from Backlog to Feature Requests/Improvements on the ConfirmEdit (CAPTCHA extension) board.

DerHexer subscribed.Jul 22 2025, 11:52 AM

kostajh added a project: WE4.2 Bot detection (WE4.2 hCaptcha account creation trial).Aug 21 2025, 6:39 PM

kostajh subscribed.

Not needed for the trial.

If we don't support the hl parameter, that also means that we rely on hCaptcha' detecting the desired locale from the user's browser when displaying the challenge, and that uselang doesn't have any effect. Given that the challenge is intended to be shown to 0.1% of real users, I think this is OK, but we could consider taking on the work to map usage of uselang to values that hl will understand.

Dreamy_Jazz edited projects, added Product Safety and Integrity; removed Trust and Safety Product Team.Feb 24 2026, 2:49 PM

ConfirmEdit hCaptcha: Set `hl` parameter to an acceptable fallback when hCaptcha does not natively support the languageOpen, Needs TriagePublicActions