We're using an older embedded version of Chromium in ExpanDrive for Windows [CefSharp 1 using Chromium 25] and in the past day or two the Dropbox oauth flow has broken - users see the form but there are some javascript errors thrown in the console that prevent the user from typing their email address [hidden behind grayed out "email"/"password" placeholders] and the sign in button doesn't activate. The log in with google button also doesn't work. This worked a few days ago.
Here are the messages we're seeing in the console:
https://cfl.dropboxstatic.com/static/javascript/compiled/require_bundle.min-vflcbYjLz.js:1 - Uncaught TypeError: Property 'nextTick' of object #<Object> is not a function
https://www.dropbox.com/oauth2/authorize?response_type=code&client_id=[REDACTED]www.expandrive.com%2Foauth:69 - Uncaught TypeError: Property 'define' of object [object Object] is not a function