Browser error:

net::ERR_CONTENT_LENGTH_MISMATCH 200 (OK)

To view the Nginx error log:

13505#0: *1107085 pwritev() "/usr/local/nginx/proxy_temp/5/88/0000050885" failed 
(28: No space left on device) while reading upstream

There is not enough space, which means the disk is full.

Because proxy_Temp is the cache folder of Nginx. My CSS and JS files are too large, so Nginx usually takes them from the cache instead of directly loading them at the original address every time.

Refer to
browser error net:: err_ CONTENT_ LENGTH_ Mismach 200 (OK) solution