Open Web Analytics with Node.JS web applicaiton. Getting Error 'TypeError: doc is null'

Question

Scenario: For a running web applications running on Node.js, we are integrating the OpenWebAnalytics.

Issue: In firebug it shows the error as follows

TypeError: doc is null
[Break On This Error]   

...dth?window.innerWidth:document.body.offsetWidth;viewport.height=window.innerHeig...

At the line no 168 in the file named owa.tracker.combined.min.js

Method source code:

 getIframeDocument: function (iframe) {
        var doc = null;
        if (iframe.contentDocument) {
            doc = iframe.contentDocument;
        } else if (iframe.contentWindow && iframe.contentWindow.document) {
            doc = iframe.contentWindow.document;
        } else if (iframe.document) {
            doc = iframe.document;
        }
        if (doc == null) {
            OWA.debug("Document not found, append the parent element to the DOM before creating the IFrame");
        }
        doc.open();  // TypeError: doc is null
        doc.close();
        return doc;
    }

Question: Can anyone know the solution for this kind of issues?

Advance Thanks for great help

Answer 1

I have ran into the same issue while configuring open web analytics in my application. Problem may be baseUrl which your are mentioned in the javascript snippet

Eg: Incorrect var owa_baseUrl = 'http://yourdomain/path/to/owa';

correct: var owa_baseUrl = 'http://yourdomain/path/to/owa/';

Double check the javascript snippet embedded in the html file.