CODEWITHSUNDEEP
javascriptc#htmlinternet-explorerdoctype
Panadol Chong
Panadol Chong

Reputation: 1903

HTML1527: DOCTYPE expected. The shortest valid doctype is "<!DOCTYPE html>"

Good day,

I am working on a c# web application, everything is working until I add in a normal JavaScript.

The html code is something as follow:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="scripts/JScript.js" type="text/javascript"></script>
<asp:ContentPlaceHolder id="headContent" runat="server">
    </asp:ContentPlaceHolder>
</head> 
<body>

<asp:ContentPlaceHolder id="title" runat="server"></asp:ContentPlaceHolder>
<asp:ContentPlaceHolder id="bodyContent" runat="server"></asp:ContentPlaceHolder>
<!-- some code here -->
</body>

The JScript.js is the JavaScript that put in.

The JavaScript code is something as follow:

function getCookie(catId) {
  var ebRand = Math.random() + '';
ebRand = ebRand * 1000000; 

document.write('<scr' + 'ipt src="HTTP://bs.serving-sys.com/Serving/ActivityServer.bs?cn=as&amp;ActivityID=553971&amp;rnd=' + ebRand + '"></scr' + 'ipt>');
}

This JavaScript function will be trigger when a link button is click.

I hit error in IE but Chrome and Mozilla is working fine.

My error in IE console is HTML1527: DOCTYPE expected. The shortest valid doctype is "<!DOCTYPE html>".

After search in Google, I try to put in

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

as new DOCTYPE, but it not working also.

and I have try put 

<meta http-equiv="X-UA-Compatible" content="IE=edge" />

inside <head></head>

But I still get the same error in IE also.

Is is problem in ContentPlaceHolder?

Other than that, I have go to W3C Markup Validation Service to do some validation of the address :

http://validator.w3.org/check?uri=HTTP%3A%2F%2Fbs.serving-sys.com%2FServing%2FActivityServer.bs%3Fcn%3Das%26amp%3BActivityID%3D553971%26amp%3Brnd%3D20079.082210606393&charset=%28detect+automatically%29&doctype=Inline&group=0

And go to http://validator.w3.org/check to put in <script src="HTTP://bs.serving-sys.com/Serving/ActivityServer.bs?cn=as&amp;ActivityID=553971&amp;rnd=20079.082210606393"></script> as well.

But not understand what is the validation result means.

What I get from IE script console Kindly advise.

Upvotes: 0

Views: 17709

Answers (1)

Jukka K. Korpela
Jukka K. Korpela

Reputation: 201518

IE issues a warning about <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">, because such a string is not a valid doctype according to HTML5. The warning as such has no impact on anything. It’s just part of HTML5 evangelism.

After you changed it to <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">, the issue was removed. But you probably saw the results of using some cached copy that has a wrong doctype. Testing with a fresh file (with a new name) should fix this issue.

Of course, the code as such does not validate, since the ASP tags are taken literally and interpreted as body content, but that’s a different issue.

The practical move is to use <!DOCTYPE html> as suggested. If you wish to still validate against the XHTML 1.0 specification for example, you can do this using the validator’s user interface to override the doctype.

But it’s not a big issue; you can just as well simply ignore the warning. If you have some functional errors, they are caused by something else and should be asked separately, with sufficient data provided.

Upvotes: 1

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