Registration fallback's callback function does not continue registration

[grahhnt]

Steps to reproduce

Currently the app does not support registration tokens, and with the app using the obsolete static registration page (/_matrix/static/client/register) I decided to write my own and use a reverse proxy to rewrite the contents of the page (but keeping the injected code)

The issue that is occurring is once I execute window.matrixRegistration.onRegistered nothing happens on the app, I've also tried executing window.matrixLogin.onLogin with the data it's expecting from /_matrix/client/r0/login and still, no response from the app

Logs Shaking the device does not display a "send logs" popup

Outcome

What did you expect?

window.matrixRegistration.onRegistered & window.matrixLogin.onLogin to proceed with login on the fallback static page /_matrix/static/client/register

What happened instead?

Nothing happens, not an error, not a dismissal of the login popup, nothing

Your phone model

iPhone 11

Operating system version

iOS 15.6.1

Application version

Element 1.9.2

Homeserver

Synapse 1.64.0

Will you send logs?

No