Do you mean that require() is not resolved? You need to either add require.js to your project or enable Node.js Globals predefined library in Settings/Languages and Frameworks/JavaScript/Libraries. (Edited settings path by @yurik) In WebStorm 2016.x-2017.x: make sure that the Node.js Core library is enabled in Settings (Preferences) | Languages & Frameworks | Node.js and NPM … Read more
Firefox add-ons generally run in a scope where the global window object is not defined (if it is defined depends on how the portion of your code that is currently running was entered). If you want to use methods/objects associated with a window object, the easiest way is to obtain a reference to an appropriate … Read more
My problem is: can I perform modification on DOM (so: the HTML document that is returned by server) before the page even starts displaying? Yes, javascript execution starts before the page is rendered the first time. The DOM Parser does notify mutation observers, so you can immediately strip elements as soon as they are added … Read more
There are a multitude of ways to interact with page scripts, the most common of which are covered in the official documentation, including all of the ways listed in the question. Please read “Interacting with page scripts”. However, it should be pointed out that interacting with page scripts in a secure fashion can be hard. … Read more
If you look into the console messages, this is what you should see: downloadable font: download not allowed (font-family: “FontAwesome” style:normal weight:normal stretch:normal src index:0): bad URI or cross-site access not allowed Unfortunately for you, web fonts are subject to the same-origin policy which can only be relaxed via CORS. This means that there is … Read more
if you are having this error while running node server locate this file node_modules/whatwg-url/dist/encoding.js or …/lib/encoding.js add this line at top const { TextEncoder, TextDecoder } = require(“util”);
.xpi file format (Extension Packaging) The .xpi files that are used as containers for Mozilla (Firefox, Thunderbird, etc.) extensions are merely zip archives that have had the file extension changed to .xpi with the files added to the archive using either “deflate” compression, or uncompressed. If you use any other type of compression, other than … Read more