javascript - Still the same problem: Provisional headers are shown

I sent a request using $.ajax on the front end, and the development tool showed this error, as if the request was not sent

I checked it with net-internals and the result is this

What does this error mean

I don’t use adblock, and I’m not blocked. I hope you can give me some advice!

Reply content:

I sent a request using $.ajax on the front end, and the development tool showed this error, as if the request was not sent

I checked it with net-internals and the result is this

What does this error mean

I don’t use adblock, and I’m not blocked. I hope you can give me some advice!

The server has never returned a value, so the request has been pending or waiting for a response