I have a overlay video playing in the background and it works fine when I run the website locally after deploying to azure I got this error message in browser console
HTTP load failed with status 404. Load of media resource
Finally I found the answer for my question I had to edit web.config file to allow server send video files
<staticContent>
<mimeMap fileExtension="mp4" mimeType="video/mp4"/>
<mimeMap fileExtension="m4v" mimeType="video/m4v"/>
<mimeMap fileExtension="ogg" mimeType="video/ogg"/>
<mimeMap fileExtension="ogv" mimeType="video/ogg"/>
<mimeMap fileExtension="webm" mimeType="video/webm"/>
</staticContent>