Disable Caching in WebHelp Pages

Sometimes, a set of WebHelp pages needs to be updated often in order to deliver the latest version of the documentation to your users. In such cases, a WebHelp page should always be requested from the server upon re-loading it in a Web browser on the client side, rather than re-using an outdated cached version in the browser.

To disable caching in WebHelp pages, follow this procedure:

Edit the following XSL file for DITA or DocBook WebHelp systems:
- For DITA WebHelp systems, edit the following file: DITA_OT_DIR\plugins\com.oxygenxml.webhelp\xsl\createMainFiles.xsl.
- For DocBook WebHelp system, edit the following file: [OXYGEN_DIR]\frameworks\docbook\xsl\com.oxygenxml.webhelp\xsl\createMainFiles.xsl.

Locate the following template in the XSL file: <xsl:template name-"create-toc-common-file"> and add the following code snippet:

<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="-1" />

Note: The code should look like this:

  <html>
    <head>
      <xsl:if test="$withFrames">         
      <base target="contentwin"/>
      </xsl:if>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
           <!-- Disable caching of WebHelp pages in web browser. -->      
      <meta http-equiv="Pragma" content="no-cache" />
      <meta http-equiv="Expires" content="-1" />
....

Save your changes to the file.
Re-run your WebHelp system transformation scenario.