[Bug]: page.off("request") is messed up because of interceptCooperative mode

[EedoCelsius]

Bug description

Steps to reproduce the problem:

PAGE.JS

on(eventName, handler) {
    if (eventName === 'request') {
        return super.on(eventName, (event) => {
            event.enqueueInterceptAction(() => handler(event));
        });
    }
    return super.on(eventName, handler);
}

This is the page.on() method. Because it is overriding the handlers for events with eventName "request", the original handler is not removable by

INDEX.JS

off(type, handler) {
    const handlers = all.get(type); 
    if (handlers) {
        handlers.splice(handlers.indexOf(handler) >>> 0, 1);
    }
}

and I'm wondering what ' >>> 0' is needed for.

Puppeteer version

10.4.0

Node.js version

v14.16.0

npm version

6.14.11

What operating system are you seeing the problem on?

Windows

Relevant log output

No response

[EedoCelsius]

works great when

on(eventName, handler) {
    if (eventName === 'request') {
        return super.on(eventName, (event) => {
            event.enqueueInterceptAction(() => handler(event));
        });
    }
    return super.on(eventName, handler);
}

deleted from PAGE.JS (cooperative wouldn't work probably)

[jpxzp]

fixed #7624