Tracking API support new Parameters for User Agent and Browser Language #3520

Add more parameters passed via URL: user-agent, language

Currently these can be passed with the http header but we could indeed add it to the list of tracking parameters. Please comment below if you are interested in this feature or if you have a patch.

Implemented and documented in: Analytics Tracking API

• ua -- This value is the User-Agent HTTP header string is used by Piwik to detect Operating System and browser used.
  Note: Alternatively you can set the User-Agent HTTP header instead of using the &ua= parameter.
• lang -- This value is the Accept-Language HTTP header, which lets Piwik detect user country (based on language) if GeoIP is not enabled.
  Note: Alternatively you can set the Accept-Language HTTP header instead of using the &lang= parameter.

see also #5365 do not store Accept-language full string, only store detected language