Re-enabling pinch to zoom on Discord Canary

_instructions.txt

Find the directory for the `Local` instance of your Discord client, e.g. `AppData\Local\DiscordCanary\app-0.0.214`.
Make a directory called `app` in the `resources` directory, e.g. `AppData\Local\DiscordCanary\app-0.0.214\resources\app`.
Paste the `index.js`, `inject.js` and `package.json` files into the `app` directory you just made.
Restart your client.

Credits to Kura for helping me figure this out :)

index.js

const path = require('path');
const Module = require('module');
const { BrowserWindow, app } = require('electron');

const entry = Object.keys(require.cache).find(k => k.includes('browser-window.js'));
require.cache[entry].exports = class PatchedBrowserWindow extends BrowserWindow {
  constructor (opts) {
    opts.webPreferences = opts.webPreferences || {};
    opts.webPreferences.preload = path.join(__dirname, 'inject.js');
    return new BrowserWindow(opts);
  }
};

const basePath = path.join(__dirname, '..', 'app.asar');
const { main } = require(path.join(basePath, 'package.json'));

app.getAppPath = () => basePath;

Module._load(path.join(basePath, main), null, true);

inject.js

require(`C:\\Users\\${require('os').userInfo().username}\\AppData\\Roaming\\discordcanary\\${process.argv[0].match(/0\.0\.\d{3}/)[0]}\\modules\\discord_desktop_core\\core.asar\\app\\mainScreenPreload.js`);

/* Where the magic happens: */
require('electron').webFrame.setVisualZoomLevelLimits(1, 3);

package.json

{
  "main": "index.js"
}