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How JavaScript and Browsers Communicate
A page is open on two different websites, and one website is contacting another. Like a sketchy website can send a request like to my bank with my login cookies because the browser is the same browsers. So they don't know like, it's kind of interesting because they don't exactly know about each other. It might be unintuitive to some people because you imagine, okay, Julia's sitting there. She's got two browser windows open. How do those browser windows know aboutEach other? I mean, isn't each application just saying, I am talking to Julia? That's right.