registration on element. subdomain isn't working

[nebocamin]

Describe the bug
if you have open registration and go to element.yourdomain and try to register.
the email with validation is coming.
the validation link will not work.the site shows success, but the user remains unregistered

To Reproduce
My vars.yml file looks like this:

matrix_synapse_registrations_require_3pid: ['email']
#matrix_synapse_account_threepid_delegates_email: true
matrix_synapse_enable_registration: true

[baskinsy]

I have the same issue. Registration screen stays spinning, verify email link report success and user is not registered. I am using token registration, the token is used but registration is not completed.

Maybe this is relevant: element-hq/element-web#26172 (comment)

[baskinsy]

Can confirm that setting

"m.identity_server": {
            "base_url": "https://vector.im"

in client-element/config.json and restarting the container makes registration to work again.

[ivoruetsche]

You can also have your own identity server, if you set:

matrix_ma1sd_enabled: true

The registration didn't stuck.

[laszlovl]

I ran into this issue as well. Note a more stable workaround than manually editing client-element/config.json is adding to your vars.yml:

matrix_client_element_default_is_url: https://vector.im

Might be worth adding a note about this on https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/registering-users.md#enabling-public-user-registration until the issue is fixed in element-web?