Roon Mastery Series not loading in non-English browsers (ref#RP4DAF)

What’s happening?

· Something else

How can we help?

· None of the above

Other options

· Other

Describe the issue

Website not loading Roon Mastery Series when browser language is not english

Describe your network setup

n/a

xref ff.: Roon Mastery Series - what is? - #35 by chkrde

Some additional information, headers for language set to en:
mastery_EN_header

and missing when language set to de/fr/es:
mastery_DE_header

Hi @chkrde,

We’ve read your posts here and elsewhere and attempted to reproduce the environment in which you’ve encountered this issue but can’t recreate the symptom. It’s not clear what variable differs for you from everyone else.

Have you disabled any third-party content blockers or other services?

I tested with the following devices/browsers/settings and preferred language in browser set to ‘de-de’. (When switching over from a loading Master Series with ‘en’ to ‘de-de’ i had to clear the cache to make it fail again):

Win 11: chrome (no plugins), firefox (w/ and w/o blockers), edge (no plugins)
MacOS 12.7.6 (Roon Server) : safari (no plugins), firefox (no plugins), chrome (no plugins)
MacOS 14.7.1: same as above
IpadOS 18.1: safari (/w and w/o 1Blocker), firefox/webkit
IPhoneOS 18.1: safari
No proxy involved.
Tested Apple devices with wifi & cellular.
Switched to different website languages.
Tried when beeing logged in and out to account.roon.app.

No combination did work just got a rotating circle. Switching the browsers’ prefered languange to ‘en’ and reloading then Master Servies showed up.

Settings in Firefox:
webpage-language

de-de:
de-de

en:
en

I can also repro this with Firefox on Windows after making this config change

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Thanks for the report @chkrde and @Suedkiez!

We’ve been able to reproduce this as well, and are working on a solution. Thanks for your patience in the meantime. :raised_hands:

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