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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
/**
*
* The site is expecting wheelDeltaY to have the opposite sign, breaking scrolling.
* We can override the value to flip the sign and scale down the value.
*/
/* globals exportFunction */
console.info(
"wheelDeltaY is being overriden for compatibility reasons. See https://bugzilla.mozilla.org/show_bug.cgi?id=1922498 for details."
);
const proto = window.wrappedJSObject.WheelEvent.prototype;
const descriptor = Object.getOwnPropertyDescriptor(proto, "wheelDeltaY");
const { get } = descriptor;
descriptor.get = exportFunction(function () {
const value = get.call(this);
return -value / 40;
}, window);
Object.defineProperty(proto, "wheelDeltaY", descriptor);