WeChat applets support access to third-party websites, but the premise is that the third-party websites allow access, so you need to add a "business domain name" under the root directory of the third-party website
Log in to the background of the applet, find the development settings, and add the third-party website you want to visit
First configure the verification file to the root directory of the third-party website
Add verification again.
At this time, you can access the third-party website through web-view in the applet.