I'm using the Khan Academy API in an Electron application, I noticed that the login page (/api/auth2/authorize) has the option to login with Facebook or Google but not with Khan Academy account.
There's that error in the devtools
Error in LABjs loading: ReferenceError: jQuery is not defined
How can I get the page to load normally like it does in a browser?
Electron windows do not load Jquery properly. You can find info on how to load Jquery here.
However, it looks as tho you are just loading a website url directly into Electron? I if this is true you should have a look at Electrons <webview> tag.