IE: Mail settings can't be saved as SMTP Port field doesn't recognize numeric value

[Nazarah]

Steps to Reproduce:

1. go to page: https://vamos.apinf.io and login as admin
2. go to user>settings
3. Enable Email settings, provide necessary and valid values to the fields and click Save

Outcome:
SMTP Port field is highlighted and shows alert message: "SMTP Port number must be a number", despite numeric value is provided in the field.
In other browsers (e.g. chrome, FF) the field appears as controller to add numeric values using up/down arrows.
However, in IE11, the controller doesn't appear.

Expected Behavior:
It should be possible to save valid field value.
Controller to add numeric values in a field should appear properly.

Environment:
Windows 10, IE11, APInf vamos site (https://vamos.apinf.io) - Release 0.52

[deligence-dharmendra]

Hi @marla-singer @matleppa, I have tested the above issue on development as well as the nightly environment. In my development environment, it working fine with windows 10 and IE 11. But in case of nightly.apinf.io, I'm getting the same issue with windows 10 and IE 11. Are develop and the nightly codes same? Second things IE Browser does not support Controller to add numeric in a field.

Please see the attached snapshot.

[marla-singer]

Are develop and the nightly codes same?

Yes, the code is the same

Try to edit the e-mail settings on development environment. Maybe it's reproduced only Update event.