Appending spaces to Account ID on sign in page and logging in with valid credentials results in unresponsive interface and white screen

[codycooperross]

Describe the bug

When logging in with valid credentials at the sign in page https://doi.datacite.org/sign-in, if a space is appended to an Account ID, the page refuses inputs and eventually displays a white screen.

Expected Behaviour

The user is able to login as expected when accidentally appending spaces to their Account ID.

Steps to Reproduce

1. Go to https://doi.datacite.org/sign-in
2. Enter a valid Account ID with one or more spaces appended.
3. Enter the account's password.
4. The page will refuse inputs and eventually display a white screen. This will persist until the cookie for the page is deleted.

Proposal

Hypothesis

The appended spaces seems to cause issues in which the system calls URLs like /repositories/delft.isric%20, which return 204 responses. See here. Unclear if this is the source of the issue.

Front conversations

[codycooperross]

Whitespace entered in the username of the login screen may also produce unexpected behavior in other screens depending on the user environment, like missing information in account details. See https://app.frontapp.com/open/cnv_b2bf1ed?key=GHvAiFqSOfcz96bRt4lMnYVLCFw7lWS7