amazon s3 - AWS s3 mp4 not working in Chrome using CNAME -

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i have mp4 file hosted on s3 works in firefox not in chrome. have set cname pointing s3 bucket. if link directly using original s3 object url works fine, in chrome. also, if link using cname ssl on, although have invalid certificate warning, if accept works.

one more thing, have looked in chrome developer tools, , displays 'resource interpreted document transferred mime type video/mp4: "https://s3.amazonaws.com/media.devmcgill.com/videos/projet/titrevideo2/low.mp4".', thought issue, there on url try, succesful or not.

here url i'm using

s3 link (works) : https://s3.amazonaws.com/media.devmcgill.com/videos/projet/titrevideo2/low.mp4

cname link on ssl (works) : https://media.devmcgill.com/videos/projet/titrevideo2/low.mp4

cname (fails) : http://media.devmcgill.com/videos/projet/titrevideo2/low.mp4

i have set content-type metadata "video/mp4" on video in s3

thanks sorting out what's going on.


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