accessibility - How do I encode WebVTT document as UTF-8 and MIME type="text/vtt"?

"A WebVTT file must consist of a WebVTT file body encoded as UTF-8 and labeled with the MIME type text/vtt."
whatwg source: http://www.whatwg.org/specs/web-apps/current-work/webvtt.html

i figure i need to set .htaccess? i'm on apache/php/mysql.

Answer

Replace AddDefaultCharset ISO-8859-1 with AddDefaultCharset UTF-8 in the Apache.conf file.

If using .htaccess for configuration use something similar to:

AddType "text/html; charset=UTF-8" html