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What can cause an HTML form submission result in a new pop-up window?
These are the methods I know of:
- Set the form's
targetattribute to_blank. - Add
submitevent listeners (e.g., this SO thread).
In the proprietary web app that I have to work with, every form submission pops up a new browser window. Some of these are easily preventable by replacing the JavaScript spaghetti code with submitting the forms directly with submit(), but there is one that stumps me:
There is a form that POSTs to url_a, the form has no target attribute or submit event listener, and after submitting a new window pops on url_b whose parts are not referenced anywhere in the originating page, and I also couldn't find any reference to it in the network request and response. The page's <body> element has a load event listener attached, but none of the functions listed there seem relevant.
Am I missing something basic?
Side note: Can't produce an example of what is not working, because (a) that is why I'm asking this and (b) the web page in question is more than 7000 lines where the HTML is only about 40, but this app include every script on every page, hence the high-level nature of this question.
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