Crossorigin errors when loading VTT file

Question

I\'m new to using the audio tag in HTML 5 and wanted to build a player. I wanted to test using a VTT file in a track tag to see how closed captioning could work.

Here is

Answer 1

I've been dealing with the same issue: the media player works fine, but the closed captioning file runs into cross-domain issues. Some browsers choke, others do not. Some browsers want a specific CORS policy and will not accept a wildcard in the allowed origin. And that makes my life complicated.

We could store the caption files on our primary content server. But we prefer to maintain the video and caption files in the same location (in my case, on Amazon Web Services S3/CloudFront). To get around the CORS complications, we built a small server-side script to grab the tiny caption files from the CDN. That eliminates all cross-domain issues.