We have an MP4 video file in a Github Pages repository. The file is being served with a MIME type of application/octet-stream, which means Internet Explorer doesn't like it. It should be served as type video/mp4. Is there a way to configure Github Pages to use the proper MIME type, or should we find an alternate hosting solution for the video? This topic isn't addressed in the help pages.
The answer is no.
However, Ian's earlier answer is not strictly true. You can use GitHub to host webpages. There are plenty of developer blogs up there.
For video I use Amazon S3 as it costs next to nothing for storing and serving video content and you can set the MIME types as you require.
I store about 60GB of video and served 8 GB last month for the cost of 9 USD so it's worth it.