Roll20 Boilerplate v2

Use this before other scripts

נכון ליום 13-04-2019. ראה הגרסה האחרונה.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Roll20 Boilerplate v2
// @namespace    http://statonions.com
// @version      0.2.1
// @description  Use this before other scripts
// @author       Justice Noon
// @match        https://app.roll20.net/editor/
// @include      https://app.roll20.net/assets/*
// @run-at       document-start
// @grant        GM_webRequest
// @webRequest   {"selector": "*/assets/app.js?*", "action": "cancel" }
// ==/UserScript==

(function() {
    'use strict';
    var readyScript = '';

    GM_webRequest([{"selector": "*/assets/app.js?*", "action": "cancel" }], function(info, message, details) {
        console.log(info, message, details);
    });
    var oReq = new XMLHttpRequest();
    oReq.addEventListener("load", function() {readyScript = this.responseText.replace('getPointer,degreesToRadians;', 'getPointer,degreesToRadians;window.d21=d20;')});
    oReq.open("GET", "https://app.roll20.net/assets/app.js");
    oReq.send();

    const observer = new MutationObserver(mutations => {
        mutations.forEach(({ addedNodes }) => {
            addedNodes.forEach(node => {
                if(node.nodeType === 1 && node.tagName === 'SCRIPT') {
                    const src = node.src || '';
                    //Load modified app when it would have loaded normally
                    if(src.indexOf('assets/app.js') > -1) {
                        window.eval(readyScript);
                        node.type = 'javascript/blocked';
                        node.parentElement.removeChild(node);
                        observer.disconnect();
                    }
                }
            })
        })
    })

    observer.observe(document.documentElement, {
        childList: true,
        subtree: true
    })
})();