Adding and Managing MIME Type Overrides


This document relates to the CacheFly V1 platform. For documentation relating to the CacheFly V2 platform please see our new Help Guides.



MIME stands for Multipurpose Internet Mail Extensions. It's a way of identifying files on the Internet according to their nature and format. For example, using the Content-type header value defined in a HTTP response, the browser can open the file with the proper extension/plugin. Servers insert the MIME header at the beginning of any Web transmission. Clients use this content type or Internet mediatype header to select an appropriate "player" application for the type of data the header indicates. Some of these players are built into the Web client or browser (for example, almost all browsers come with GIF and JPEG image players as well as the ability to handle HTML files); other players may need to be downloaded. 

To override a MIME Type, click on Delivery Options and then the MIME Overrides submenu. The MIME Type Overrides screen, illustrated below, is displayed. Follow the steps below to add or mange the MIME Type Overrides associated with your account.


  1. Enter the MIME Type Extension that you want to match when creating this override in the Match extension field. Extension should between 2 and 4 alphanumerical characters long.
  2. Enter the MIME Type that will be overriding the MIME Type Extension currently in place.  Mime type can only contain alphanumeric, '/', '.', '-' and '+' characters.
  3. Click Create, As shown in the following illustration, the system confirms that the override has been successfully added, and it has been added to the Rule list.


Note: To delete a MIME Type Override that you have created, select it using the checkbox in the Rule list and click Delete Selected. As shown in the following illustration, the system displays a Warning message before proceeding with the deletion, to ensure that is your intention. Click Remove to delete the override, or click Cancel to close the message without deleting it.




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