I ran into this error while watching video in an edX course.
Video unavailable. This video is restricted. Try signing in with a Google Apps account.
So I try using Mozilla Firefox ESR Portable Edition. It works!
Delete cached files on server running IIS When changing css, javascript files, check to delete if IIS still caches old files in the default folder C:\inetpub\temp\IIS Temporary Compressed Files\<sitename>\$^_gzip_D^\ Apply to: IIS 8.5