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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="UTF-8"> | |
<title>Mutation Observers</title> | |
<meta name="viewport" content="width=device-width"> | |
<link rel="stylesheet" href="../video-pages/main.css"> | |
</head> | |
<body> | |
<header> |
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const CDP = require('chrome-remote-interface'); | |
CDP(async (client) => { | |
const {Network, Page, Target} = client; | |
Network.requestWillBeSent(({request, redirectResponse}) => { | |
console.log((redirectResponse || {}).url + ' -> ' + request.url); | |
}); | |
Target.targetCreated((params) => { | |
if(params.targetInfo.type != "page") { |
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/** | |
* Waits for an element satisfying selector to exist, then resolves promise with the element. | |
* Useful for resolving race conditions. | |
* | |
* @param selector | |
* @returns {Promise} | |
*/ | |
export function elementReady(selector) { | |
return new Promise((resolve, reject) => { | |
let el = document.querySelector(selector); |
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var items = Array.prototype.slice.call( | |
document.querySelectorAll('*') | |
).map(function(element) { | |
var listeners = getEventListeners(element); | |
return { | |
element: element, | |
listeners: Object.keys(listeners).map(function(k) { | |
return { event: k, listeners: listeners[k] }; | |
}) | |
}; |
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/* Example: | |
var someUnsafeStr = '<img>'; | |
var result = escapeHTMLTag`<input value="${someUnsafeStr}">`; | |
console.log(result); // <input value="<img>"> | |
// Questions? rob {at} robwu.nl | |
// */ | |
function escapeHTML(str) { | |
// Note: string cast using String; may throw if `str` is non-serializable, e.g. a Symbol. |
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/** | |
* Implementation example of writable response bodies. | |
* Based on the draft of the Streams API (19 March 2014) | |
* https://dvcs.w3.org/hg/streams-api/raw-file/tip/Overview.htm | |
* Design document for response body reading/writing: | |
* https://docs.google.com/document/d/1iE6M-YSmPtMOsec7pR-ILWveQie8JQQXTm15JKEcUT8 | |
*/ | |
/* globals chrome, ByteStream, URL, XMLHttpRequest */ | |
'use strict'; |