Microsoft Azure Open Source Development Support Team Blog

Support for Open Source Technologies on Microsoft Azure App Service

Media Files – HTTP 404 – Azure Web Apps

You’ve uploaded a media file to your WordPress site and attempt to access the files URL but receive a HTTP 404 error.  You check to make sure that the file is in the correct directly but the error continues to be displayed.  This can occur if the type of file you are attempting to access is not part of the default list of MIME types on IIS.  You can modify the web.config file in your wwwroot directory to add the file extension and type of application associated with the file.

Sample Configuration

<configuration>
   <system.webServer>
         <staticContent>
            <remove fileExtension=".woff" />
            <remove fileExtension=".woff2" />
            <mimeMap fileExtension=".woff" mimeType="application/font-woff" />
            <mimeMap fileExtension=".woff2" mimeType="application/font-woff2" />
            <mimeMap fileExtension=".mp4" mimeType="video/mp4" />
            <mimeMap fileExtension=".webm" mimeType="video/webm" />
            <mimeMap fileExtension=".ogv" mimeType="video/ogg" />
         </staticContent>
   </system.webServer>
</configuration>

A list of media types can be found at http://www.iana.org/assignments/media-types/media-types.xhtml