As we know, upload.wikimedia.org has been blocked in mainland of China by GFW recently. And lots of photos in Miraheze cannot show normally. @Dmehus advised me to upload photos we need from Wikimedia commons to Miraheze commons. But the quantity of work is too large and it would take too much time.
I have thought a way to do instead: use Jquery to replace images' urls (src) to some Wikimedia's mirror sites. The code is in my common.js on NMFWiki - there.
But the only problem is that the mirror site is not in CSP white list. So we still cannot see the images. So I would like to request to add some mirror sites to CSP white list.
The mirror sites's urls can be found at WP:MF from ZhWikipedia. Such as *.ryancray.com and *.iwiki.eu.org.