warning: validatedomnesting(…): <form> cannot appear as a descendant of <form>
This error message is usually encountered when nesting a <form> element within another <form> element. According to the HTML specification, forms cannot be nested inside each other.
Here’s an example of nested forms, which is incorrect:
<form action="/first-form">
<form action="/second-form">
...
</form>
</form>
To resolve this issue, you should ensure that you do not nest forms. If you need multiple forms on a page, consider reorganizing your HTML structure or rethinking the use of multiple forms. If you need to divide a form into sections, you can use other HTML elements like <fieldset> or CSS styles.
Here’s an example of a correct structure where forms are not nested:
<form action="/first-form">
...
</form>
<form action="/second-form">
...
</form>
Following this guideline will help ensure that your HTML markup remains valid and compliant with the specifications.