The ticket “support Sec-CH-UA” has been closed.
opened 10:59AM - 26 Jun 20 UTC
closed 05:43PM - 04 Jul 22 UTC
Enhancement
Critical
(I thought I wrote about this before, but couldn't find an issue)
The Chrome … team is working on a large change that plans to deprecate the user-agent string.
The current(?) Chrome 83 already freezes the string and Chrome 85 will unify it to one common string for all desktop and one for all mobile users.
As a replacement the client hints standard is proposed: https://github.com/WICG/ua-client-hints
This allows to get similar data about a device already separated by things like brand, browser, os, etc. (meaning device-detector would not be needed anymore).
There is both an HTTP header (that only returns non-vague results if the server requests them) and a JS API for accessing the data.
### Things that might complicate this:
#### the main UA value is not a string, but a list/set
`Chrome"; v="73", "ChromiumBasedBrowser"; v="60", "Chromium"; v="73"` (and the corresponding dictionary from JS) is a valid response and browser vendors are encouraged to "randomly [include] additional, intentionally incorrect, comma-separated entries with arbitrary ordering".
---------------
It seems like at the moment only Chromium-based browsers are working on implementing this standard, but as it seems like these are by far the majority now, that doesn't really matter.
I added this to 4.0 RC for now as it impacts every Matomo user as the most popular user agent will display incorrect results.
Links:
https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/-2JIRNMWJ7s/yHe4tQNLCgAJ
https://www.chromestatus.com/feature/5995832180473856
https://github.com/WICG/ua-client-hints
https://wicg.github.io/client-hints-infrastructure/
`https://github.com/mozilla/standards-positions/issues/202#issuecomment-558294095` (Position of the firefox team on this standard)
Lukas
July 8, 2022, 11:22am
#2
Yes, the feature has been completed here:
matomo-org:4.x-dev ← matomo-org:clienthints
opened 04:33PM - 24 Feb 22 UTC
### Description:
this requires https://github.com/matomo-org/device-detector/… pull/6989 to be finished and released
fixes #16125
### Review
* [ ] [Functional review done](https://developer.matomo.org/guides/pull-request-reviews#functional-review-done)
* [ ] [Potential edge cases thought about](https://developer.matomo.org/guides/pull-request-reviews#potential-edge-cases-thought-about) (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
* [ ] [Usability review done](https://developer.matomo.org/guides/pull-request-reviews#usability-review-done) (is anything maybe unclear or think about anything that would cause people to reach out to support)
* [ ] [Security review done](https://developer.matomo.org/guides/security-in-piwik#checklist)
* [ ] [Wording review done](https://developer.matomo.org/guides/pull-request-reviews#translations-wording-review-done)
* [ ] [Code review done](https://developer.matomo.org/guides/pull-request-reviews#code-review-done)
* [ ] [Tests were added if useful/possible](https://developer.matomo.org/guides/pull-request-reviews#tests-were-added-if-usefulpossible)
* [ ] [Reviewed for breaking changes](https://developer.matomo.org/guides/pull-request-reviews#reviewed-for-breaking-changes)
* [ ] [Developer changelog updated if needed](https://developer.matomo.org/guides/pull-request-reviews#developer-changelog-updated-if-needed)
* [ ] [Documentation added if needed](https://developer.matomo.org/guides/pull-request-reviews#documentation-added-if-needed)
* [ ] Existing documentation updated if needed
And should therefore be a part of 4.12.0.
You can already test the detection part of the feature onhttps://devicedetector.lw1.at
Hi Lukas!
Sorry for the addition.
Best regards.
The 4.11.0-rc2 has just been released…
