How does HTML5 input type email works without top level domain name

Question

The input type = email tag in html5 works even if the top level domain name is not present

<form action = "yourPage" method = "get">
    <input type =  'email' name ="emailName" >
    <input type = 'submit'>
</form>

for eg: if we type

foo@bar

instead of

foo@bar.com

The form will be submitted. Can anyone explain why it behaves like this.

https://stackoverflow.com/a/71173721/3597276 – Michael Benjamin Feb 18 '22 at 12:52 — Michael Benjamin, Feb 18 '22 at 12:52

deceze · Accepted Answer · 2013-01-17T06:52:28.713

22

Because bar is a valid hostname, which makes foo@bar a valid email address.

Chrome is not going to check for you whether the address or host are actually in use, only whether the semantics are correct.

edited Jan 17 '13 at 06:52

answered Jan 17 '13 at 06:42

deceze

5

easiest example: `root@localhost` is actually an extremely common address :) – Eevee Jan 17 '13 at 07:00

1 Answers1