Topic: [Feature] Upload from URL: Replace "1280" with "raw" in Tumblr links automatically

Requested feature overview description.

If a user tries to upload an image directly from Tumblr, replace "_1280." with "_raw." automatically and load that image instead.

This assumes that every image has a "raw" link.

May also apply to "_500.", "_540." or others.

Why would it be useful?

Prevent some users from uploading lower quality images on accident.

What part(s) of the site page(s) are affected?

Post upload

Updated by kamimatsu