javascript - When using jssdk to share on WeChat, why does the signature error always appear?

Question

The signature in the WeChat JS interface signature verification tool is consistent with the signature given to me in the background, but when I open the page, it always displays a signature error. Why?

Answer 1

The reason is that the url is not complete

Answer 2

There are many reasons.

1. There is a problem with the token expiration mechanism in your backend

2. Your domain name is different from the domain name or address set in WeChat

3. The WeChat version is too low.

4. Wait~.