HTML validation generates error

Question

I am using google fonts and it generates following error for below link

<link href="http://fonts.googleapis.com/css?family=Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italic|Montserrat:700|Merriweather:400italic|Roboto+Condensed|Source+Sans+Pro|Droid+Serif|Open+Sans+Condensed|Oswald|Molengo|PT Sans|Droid Sans')" rel="stylesheet" />

ERROR MESSAGE

Line 35, Column 289: Bad value for attribute href on element link: Illegal character in query: not a URL code point.
…if|Open+Sans+Condensed|Oswald|Molengo|PT Sans|Droid Sans')" rel="stylesheet" />
Syntax of URL: Any URL. For example: /hello, #canvas, or http://example.org/. Characters should be represented in NFC and spaces should be escaped as %20.

SAMPLE HTML

<html>
<head>

    <title>Title</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1, maximum-scale=1" />
<link href="http://fonts.googleapis.com/css?family=Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italic|Montserrat:700|Merriweather:400italic|Roboto+Condensed|Source+Sans+Pro|Droid+Serif|Open+Sans+Condensed|Oswald|Molengo|PT+Sans|Droid+Sans')" rel="stylesheet" />
</head>
<body>
</body>
</html>

UPDATE

This generates error

 <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto%20Condensed|Source%20Sans%20Pro" />

This Works

 <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Lato"  />

<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto%20Condensed" />

When i add | to add multiple fonts it generates error so should i use multiple <link> tag to add fonts or ?

Confused about this is as below links is generate by on Google fonts font use on website

https://www.google.com/fonts#UsePlace:use/Collection:Open+Sans|Roboto:400,700,400italic|Roboto+Condensed:400,300|Lato

Pralhad Narsinh Sonar Pralhad Narsinh Sonar · Accepted Answer · 2015-06-09T03:57:40

Your example code working with JAVASCRIPT NOTATION LINK and IMPORT may not help to eliminate the VALIDATION error - so please try with JAVASCRIPT notation it works well without any error.

<!DOCTYPE html>
<html>
<head>

    <title>Title</title>
    <meta charset="utf-8" />
<script type="text/javascript">
WebFontConfig = {google: { families: [ Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italic|Montserrat:700|Merriweather:400italic|Roboto+Condensed|Source+Sans+Pro|Droid+Serif|Open+Sans+Condensed|Oswald|Molengo|PT+Sans|Droid+Sans ] }};
(function() {
    var wf = document.createElement('script');
    wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
      '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
    wf.type = 'text/javascript';
    wf.async = 'true';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(wf, s);
  })();
</script>
</head>
<body>
</body>
</html>

You will need to substiture & sign with &

<!DOCTYPE html>
<html>
<head>

    <title>Title</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1, maximum-scale=1" />
<link href='http://fonts.googleapis.com/css?family=Open+Sans&amp;subset=latin,cyrillic-ext,greek-ext,greek,vietnamese,latin-ext,cyrillic' rel='stylesheet' type='text/css'>
</head>
<body>
</body>
</html>

You may please use JAVASCRIPT notation for including the fonts from google

<!DOCTYPE html>
<html>
<head>

    <title>Title</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1, maximum-scale=1" />
<script type="text/javascript">
  WebFontConfig = {
    google: { families: [ 'Open+Sans::cyrillic-ext,latin,greek-ext,greek,vietnamese,latin-ext,cyrillic' ] }
  };
  (function() {
    var wf = document.createElement('script');
    wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
      '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
    wf.type = 'text/javascript';
    wf.async = 'true';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(wf, s);
  })(); </script>
</head>
<body>
</body>
</html>

Few more suggestions

Always include doctype at the top of HTML page
Try the IMPORT and JAVASCRIPT alternatives to include the fonts.
Please use your own google font - to avoid typos I tried with new fonts from google.

HTML validation generates error

3 Answers