can I override/redefine "global" Javascript functions, like confirm() and alert()? -

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I want to do some browser automation, and those pesky confirm / warning boxes are actual pain. Unfortunately, Disabling javascript from is not an option.

Well, I was thinking, can I just change the definition of those methods as seen by the JavaScript interpreter of my browser, originally nothing can do and the truth is returned Could? Note that I know about defining them directly in JavaScript code, e.g. Insert 

  function alert (message) {back true; }

But AFAIK is not a viable approach to this situation because when the browsers do automation, I have to work with other people's javascript. In addition, my program actually starts loading again, these websites have already been fully loaded after the page, so I can already automatically rewrite JavaScript and then load the page. I am OK, so I was wondering if I can modify "Permanently" instead of just modifying and implementing the alert / confirmation method in my browser instead. Like the DLL injection equal to and within the scope of windows apps To be done Try it


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