How to update the content of multiple URLs on a web page in real time (without using iframe tags)?

The purpose of

as shown in the figure is to update the content of multiple URLs in one page in real time. But because loading the URL will download a lot of files, the iframe tag can"t clean up the garbage (I don"t know how), and soon the browser runs out of resources and crashes.
how can I implement this without using iframe?
clipboard.png


:
Failed to load https://www.sohu.com/: No "Access-Control-Allow-Origin" header is present on the requested resource. Origin "null" is therefore not allowed access.
demoIE.html:1 Failed to load https://www.baidu.com/: No "Access-Control-Allow-Origin" header is present on the requested resource. Origin "null" is therefore not allowed access.

clipboard.png

Apr.20,2022

jquery.load (), the server fetches the data remotely and parses it. This is the only way to cross-domain for the time being

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