Created attachment 820984
html source

Description of problem:
On IPA WebUi login page "username" and "password" marked as mandatory fields on
the HTML source code. However it is not working for the "username" field. If
you keep the "username" filed empty it is not validating in client side. It is
taking it to server side for authentication.

Version-Release number of selected component (if applicable):
ipa-server-3.3.2-3.el7.x86_64

How reproducible:
always

Steps to Reproduce:
1. navigate on your browser(I used firefox)
https://<hostname>/ipa/ui/index.html
2. keep empty "username" field
3. enter some value on "password" field
4. Click on "Login" button.

Actual results:
If you keep the "username" filed empty it is not validating in client side. It
is taking it to server side for authentication.

Expected results:
These type validation should happen on client side.

Additional info:
Screen shot and html source code files are attached.