For help, and now I met a problem, when using nodejs chrome debugging code, I use a backend url to open a Mosaic of devtools debug interface, in the 81 version of the Google browser opens, the browser will automatically remove chrome - the url of the head to open the page, but it did not remove 83 and above version of the browser but reveal all url, lead to have to use manually delete the chrome - head, can enter into devtools interface, the following is two browsers display effect:
The 81 version:


83 and above version