why is form being added novalidate in angular?

Question

I want a simple form validation with the 'required' attribute. After clicking on submit button, I was unable to validate the form, and during the inspection, I noticed that form has added 'novalidate' attribute. Here is my angular file.

<div>
<h2>New form validation</h2>
<form action="">
  <input type="text" name="" id="" required />
  <button>submitlhfg</button>
</form>

Note:- Without any value, the form shouldn't submit whenever my form is going submit.