nginx reports 500 error when accessing css file for the first time

Question

In the nginx1.8 environment, a 500 error is reported when accessing the css file for the first time, and the style is not loaded. It was normal the second time. What's going on?

Answer 1

Are you using samba? If so, add the following options

oplocks = no
level2 oplocks = no

Answer 2

Provide http request header