Accept-language in HTTP header is set to en-US,en and cannot be changed, despite SEB being in a different language

[Sturek]

Describe the Bug
While the SEB interface is localized, "accept-language" in the HTTP header is set to "en-US, en" and websites are, thus, defaulting to English.

Steps to Reproduce
Steps to reproduce the behavior:

1. Set your system to a language other than English.
2. Configure the SEB to go to a page displaying the HTTP header, such as: https://manytools.org/http-html-text/http-request-headers/
3. Start the SEB
4. Compare the language of the interface to the accept-language value in the HTTP header.

Expected Behavior
Expected behavior would be that the language passed to the website in the HTTP header is the same as the language of the SEB interface.

Screenshots

Version Information

• OS: Windows 10 Pro, 21H1
• SEB-Version 3.3.0

Additional Context
This may be due to CefSettings.AcceptLanguageList not being set in BrowserApplication.cs and defaulting to en-US,en, as per https://cefsharp.github.io/api/83.4.x/html/P_CefSharp_CefSettingsBase_AcceptLanguageList.htm . May be related to this unresolved, closed issue.

[dbuechel]

Thanks for your report. We'll see that we can fix this with the next version.

[dbuechel]

The issue should be fixed and works according to our testing. You can review the change in the latest beta build if you wish.