Documentation/howto: Browser language (HTTP headers) fallback

[j-lang]

Can this extension handle language fallback or which configuration task are necessary to handle language fall-backs:

• Default site language is de-DE
• Site configuration has one additional language: hreflang: en-US

How are hreflang: en-* headers handled? How are other languages (IT, FR ... ) routed? What are necessary configuration task for a proper routing for different site languages and different source languages?

[urbantrout]

How are hreflang: en-* headers handled?

Here is an example on how the extensions detemines the site to redirect to: If Accept-Language is en-US,de-AT it looks for sites with an hreflang of en-US. If there is no match it then looks for en. If there is still no match it repeats the same logic with de-AT and so on.

[urbantrout]

Yes, I should add this to the README ;)