Solve the problem that window.open in js pops up the last cached page

Solve the problem that the page opened by window.open will save the cache.

Add the following code to the head tag of the page

Copy the code code as follows:

<meta http-equiv="Pragma" content="no-cache" />

<meta http-equiv="Cache-Control" content="no-cache" />

<meta http-equiv="Expires" content="0" />