Step 2 – the important one – requires that you create a folder in the root of the web application called App_Browsers and create a file in that folder called w3cvalidator.browser. The contents of this file are as follows.
App_Browsers file:
[code lang=”xml”]
<browsers>
<!–
Browser capability file for the w3c validator
sample UA: "W3C_Validator/1.305.2.148 libwww-perl/5.803"
–>
<browser id="w3cValidator" parentID="default">
<identification>
<userAgent match="^W3C_Validator" />
</identification>
<capture>
<userAgent match="^W3C_Validator/(?’version'(?’major’\d+)(?’minor’\.\d+)\w*).*" />
</capture>
<capabilities>
<capability name="browser" value="w3cValidator" />
<capability name="majorversion" value="${major}" />
<capability name="minorversion" value="${minor}" />
<capability name="version" value="${version}" />
<capability name="w3cdomversion" value="1.0" />
<capability name="xml" value="true" />
<capability name="tagWriter" value="System.Web.UI.HtmlTextWriter" />
</capabilities>
</browser>
</browsers>
[/code]
If this file isn’t present, for example, your ASP.NET application’s
