Regressed Plug-in MIME types are written in lower-case

Published: | Categories: DOM Plug-ins | Creative Commons BY-SA 3.0


In Firefox 28, MIME types exposed in the document.plugins, window.navigator.plugins and window.navigator.mimeTypes properties are designated by lower-case letters, instead of the original mixed-case or upper-case type. This has been considered as a regression and fixed in Firefox 29. A workaround: use the String.toLowerCase method when you try to find a specific MIME type.