core/issues/698, send correct MIME type for .jpg files

[pradpnayak]

Overview

Content-Type should be image/jpeg, not image/jpg .
https://lab.civicrm.org/dev/core/issues/698

Technical Details

IE doesn't support MIME type image/jpg

[civibot]

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[colemanw]

According to this document, there are two other extensions that would need translating. So the map would be:

[
  'tif' => 'image/tiff',
  'jpg' => 'image/jpeg',
  'svg' => 'image/svg+xml',
]

[pradpnayak]

@colemanw, Thank you so much for pointing the missing ones.

I have pushed the change for you to review.

Cheers
Pradeep

[colemanw]

I think these 4 lines can be shortened to:

$mimeType = 'image/' . CRM_Utils_Array::value($fileExtension, $translateMimeTypes, $fileExtension);

[pradpnayak]

@colemanw done!