As far as I know that's not possible. Could you file a feature request for
this (probably on crbug.com if you also want to cover DOM functions)
On Wed, Oct 19, 2016 at 7:38 PM PhistucK <phist...@gmail.com> wrote:
> 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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