Validation error: "Attribute readonly not allowed on element input at this point."

Question

When I try to validate the following HTML:

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>test page</title>
    </head>
    <body>
        <input type="text" name="testInput" value="test value" readonly="readonly" style="background-color: #e3e3e3;">
    </body>
</html>

The validator gives the error:

Line 8, Column 118: Attribute readonly not allowed on element input at this point.

But in the error details it says:

readonly when type is text, ...

As this is a text input, why am I receiving the validation error?

I'm wondering if it is a bug in the validator, as search and email work just fine. WHATWG confirms that readonly is valid here; it also states that text and search are nearly identical functionally, leading me to question further why the W3's validator would accept search but not text. — Tim M.
– Tim M., Commented Apr 16, 2013 at 2:05
Yes, this is a bug. The validator.nu validator (which is based on the same code base) does not have it. — Jukka K. Korpela
– Jukka K. Korpela, Commented Apr 16, 2013 at 4:43

Jukka K. Korpela · Accepted Answer · 2013-04-16 07:11:09Z

3

This is bug in the W3C Markup Validator; I have submitted a bug report.

While waiting for the bug to be fixed (which I expect to happen soon), use the validator.nu service instead.

Update: The bug has now been fixed.

edited Apr 16, 2013 at 7:11

answered Apr 16, 2013 at 4:56

Jukka K. Korpela

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Comments

Peyman Mohamadpour · Accepted Answer · 2020-05-07 10:44:57Z

0

readonly attribute is only allowed on these input types:

text
search
url
tel
email
password
date
month
week
time
datetime-local
number

For any other input type like hidden, you are not allowed to have readonly in which case you may get:

Error: Attribute readonly not allowed on element input at this point.

answered May 7, 2020 at 10:44

Peyman Mohamadpour

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