Description
The problem
openHAB user tokens may only contain alphanumeric chars. When creating a new token this requirement isn't mentioned here:
When the user clicks the create button, an error is shown on the next page.
Your suggestion
Keep that validation, but make it impossible to enter non-alphanumeric chars, so no page reload is required to get this feedback.
Your environment
runtimeInfo:
version: 4.3.4
buildString: Release Build
locale: de-DE