I wanted to know whether there is a V8 (or Chrome) flag of some sort that
will let me add breakpoints on native function calls.
I do not mean C++ functions, I mean built in web platform (or ECMAScript)
functions.
My issue is that I click on a link and suddenly some code is apparently
calling document.location.replace("foo") or something and the page
redirects (maliciously). In order to find the calling code, I want to set a
breakpoint on calling document.location.replace, which is a native web
platform function, that is not writable (so I cannot override it with my
own function using Object.defineProperty, or use a proxy).
(The code is apparently elusive and obfuscated somewhat, so it is not just
a search and replace)
I tried using the Developer Tools API - debug(function), but it did not
break (even when I call it with setTimeout).
A V8 flag (or a Chrome flag) that either lets me break on calling that
function, or that overrides the security feature that makes it
non-writable, or something like that, would let me see the code that calls
it and find the malicious way it does so.
So, is there something like that?
Thank you!
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