Tampermonkey: In special situation, Tampermonkey is not starting scripts even though it is on the right url.

[nindogo]

Some background:

I am using a system with the following specifications:

• Chrome: 75.0.3770.142
• TM: 4.8.41
• OS: Windows 10 OS Version 1803 (Build 17134.885)

This issue appears for me on flickr.com.

1. Start by installing the following script
   js // ==UserScript== // @name A Flickr script // @Version 1.0 // @description try to take over the world! // @match https://www.flickr.com/photos/* // @match https://www.flickr.com/photos/*/* // @grant none // ==/UserScript==
2. Then go to this(https://www.flickr.com/people/usnavy/) page.
3. On that page click on the Photostream link. (This should take you to https://www.flickr.com/photos/usnavy/ but you need to do it on the website to see the effect)

Expected Behavior

1. The browser should change to the url https://www.flickr.com/photos/usnavy/.
2. The script above should be activated on that page.

Actual Behavior

1. The browser changes to the url https://www.flickr.com/photos/usnavy/.
2. The script above is _not_ activated on that page.

[maple3142]

It is because flickr use "history api" and ajax to fetch the new page, and this didn't trigger page reload so Tampermonkey won't load.
You can verify that by using this script:

// ==UserScript==
// @name A Flickr script
// @Version 1.0
// @description try to take over the world!
// @match https://www.flickr.com/*
// @grant none
// ==/UserScript==

const fn=history.pushState.bind(history)
history.pushState=(...args)=>{
    console.log(args)
    fn(...args)
}

[derjanb]

@nindogo Please see https://github.com/Tampermonkey/tampermonkey/issues/488#issuecomment-357531737