Add Referer header to Pixiv defaults to reduce 403 responses #3090
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For some posts Pixiv responds with a 403 on webserver layer (nginx response).
I assume this is a measure against hotlinking all images of a gallery with ~14 images on another website, might be a simple regex in nginx to require this header for
/img-original/...p15.img
and upwards (not further analyzed).During investigation i came across this extension which also simply adds this header to direct requests to media:
https://chromewebstore.google.com/detail/pixiv-image-extension/cpacgkdedbhileoelnmdegkedcoammhg
This is a draft PR until i've investigated other failed downloads or until i'm sure this change actually helps.