How to understand at what point and in which file an attribute was assigned?

Question

JavaScript

Good afternoon!
Please tell me how to track at what point, in what file and in what place the date attribute was added? Initially, the input is rendered without data-custom-width, then the attribute is already added to it by the javascript. There is no way to download the site, opening and watching all js files is also not an option, there are a lot of them, cms is Bitrix ...
Now I’m looking for a way to somehow catch this moment using the chromium debugger, but I don’t have enough knowledge in this matter, never had to debug like that before.


Thanks in advance!

Answer 1

There is such a thing - https://stackoverflow.com/questions/42136051/chrom...