'log-on-stack-trace' breaks a player on deltabit.co

[Alex-302]

AdGuard for Chrome 4.2.228

Steps to reproduce

1. Add deltabit.co#%#//scriptlet('log-on-stack-trace', 'document.createElement') to user rules
2. Open https://deltabit.co/52tiyuhsq52y with Italian VPN

Actual behavior

The player is broken

Details

Reported by @ghajini

[AdamWr]

Another steps to reproduce:

1. Add this rule:

fiddle.jshell.net#%#//scriptlet('log-on-stack-trace', 'document.createElement')

2. Go to - https://jsfiddle.net/eacwL8gz/

Code:

(()=> {
    const re = /(\w+)\s(\w+)/;
    const str = 'div a';
    str.replace(re, '$2, $1');
    document.createElement(RegExp.$1);
    console.log(`RegExp.$1: ${RegExp.$1}`);
    alert(`RegExp.$1: ${RegExp.$1}`);
})();

Alert RegExp.$1: div should be displayed, but there is an error:

Uncaught DOMException: Failed to execute 'createElement' on 'Document': The tag name provided ('') is not a valid name.

As far as I understand, the problem is that RegExp.$1 is changed by scriptlet and it causes error.

---

The same issue occurs with rule like this:

fiddle.jshell.net#%#//scriptlet('abort-on-stack-trace', 'document.createElement', 'blablabla.whatever_test')

but it works fine when regexp is used:

fiddle.jshell.net#%#//scriptlet('abort-on-stack-trace', 'document.createElement', '/blablabla\.whatever_test/')