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In order to upload JPEG2000 (.jpf) images to a site I need to add a new mime type to config.php. What is the correct way to do this?

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There is a configuration override you can use here:

https://docs.expressionengine.com/latest/general/system-configuration-overrides.html#mime_whitelist_additions

Just use that in your config file to add your custom mime types to the whitelist.

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  • When I add this I still get a File not allowed error: $config['mime_whitelist_additions'] = array('image/vnd.adobe.photoshop');
    – forrest
    May 20, 2019 at 17:03
  • I doubt "image/vnd.adobe.photoshop" is the mime type for a JPEG2000 file. You'll have to look up the correct mime type string to white list.
    – jrothafer
    May 20, 2019 at 17:06
  • Hence my question. I have not been able to find anything on that.
    – forrest
    May 20, 2019 at 17:07
  • en.wikipedia.org/wiki/JPEG_2000 Right in the wiki page, image/jp2
    – jrothafer
    May 20, 2019 at 17:13
  • Tried this: $config['mime_whitelist_additions'] = array('image/jp2'); Error persists.
    – forrest
    May 20, 2019 at 18:04

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