If the click button on a page initiates an HTTP URL request to execute an action, but before the action is completed, I refresh the page and then click on the button so that the previous HTTP URL request is still executing?

If the click button on a page initiates an HTTP URL request to execute an action, but before the action is completed, I refresh the page and then click on the button so that the previous HTTP URL request is still executing. Will pop up two times on the page successfully.

The answer is:

The HTTP URL request before 1 is still executing.

Because once an HTTP URL request is launched to execute an action code, it is in memory to run the code, although you refresh the page, but the previous time in memory continue to execute.

2 but the page does not eject two operations successfully.

Because you refreshed the page, the previous request was emptied in the browser. Otherwise, imagine that this is not the case: if I clicked 100,000 times and then refreshed the page, it would pop up 1 million times. This is not possible, I refresh, the previous browser request was emptied.

Pro-Test, verification: