Multiple languages in HTTP header
This test failed because it relies on :lang for results, but :lang is not supported by this browser.
[Exploratory test] The browser will not recognize a language declaration in the HTTP Content Language header when more than one language is declared.
This test uses :lang to detect whether the language has been set. If :lang is not supported, a message will appear and the test will fail.
The following language(s) are set if the background is blue: ko, zh, ja.