Element-web: Fails to start with Electron 5.x

[ArchangeGabriel]

Description

When trying to start riot-desktop with Electron 5.x I get this:

App threw an error during load
TypeError: protocol.registerStandardSchemes is not a function
    at Object.<anonymous> (/usr/lib/riot/electron_app/src/electron-main.js:209:10)
    at Module._compile (internal/modules/cjs/loader.js:808:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:820:10)
    at Module.load (internal/modules/cjs/loader.js:677:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:609:12)
    at Function.Module._load (internal/modules/cjs/loader.js:601:3)
    at loadApplicationPackage (/usr/lib/electron/resources/default_app.asar/main.js:105:12)
    at Object.<anonymous> (/usr/lib/electron/resources/default_app.asar/main.js:153:5)
    at Module._compile (internal/modules/cjs/loader.js:808:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:820:10)
Unhandled exception TypeError: protocol.registerStandardSchemes is not a function
    at Object.<anonymous> (/usr/lib/riot/electron_app/src/electron-main.js:209:10)
    at Module._compile (internal/modules/cjs/loader.js:808:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:820:10)
    at Module.load (internal/modules/cjs/loader.js:677:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:609:12)
    at Function.Module._load (internal/modules/cjs/loader.js:601:3)
    at loadApplicationPackage (/usr/lib/electron/resources/default_app.asar/main.js:105:12)
    at Object.<anonymous> (/usr/lib/electron/resources/default_app.asar/main.js:153:5)
    at Module._compile (internal/modules/cjs/loader.js:808:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:820:10)

Steps to reproduce

• Build and launch (or just launch if using external electron) riot-desktop with electron 5.x in a terminal.

Version information

• Platform: desktop
• OS: Arch Linux
• Version: 1.0.8

[jryans]

This is broadly speaking "expected": it's related to a breaking change in Electron 5, so we'll need to change this bit when upgrading.

[uhoreg]

see https://gist.github.com/dbkr/e898624be6d53590ebf494521d868fec

[ArchangeGabriel]

@uhoreg Thanks, this patch works. :)

[fredhampton]

I'am having the same issue on macOS Mojave "App threw an error during load
TypeError: protocol.registerStandardSchemes is not a function"
I applied @uhoreg 's patch and running the desktop with yarn 'yarn electron' works but when a build the app install and start it ....the main window does not open.....Is there a way to debug this...? Because the main window did not open I do not have access to the dev tools...

[JeffJassky]

I got around this by using registerSchemesAsPrivileged instead of registerStandardSchemes.

protocol.registerSchemesAsPrivileged([{ scheme: 'app', privileges: { standard: true, secure: true, supportFetchAPI: true } }]);