is usually the first time to visit the page, or after cleaning up the browser data, there will be a problem, there will be no problem after refreshing (click events can be used..), the path is nothing. The 50kb of the css file is about large, but the file is not so big.
this is an occasional event.
some friends say that the browser"s security mechanism determines whether it is trustworthy or not.
the path of the packaged file:

{"isTrusted":true}