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Asked: 2026-06-02T14:02:33+00:00

I started out with hello world application from google documentation to write a chrome

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I started out with hello world application from google documentation to write a chrome extension. http://code.google.com/chrome/extensions/getstarted.html

I simply modified the popup.js to be:

var span = document.createElement("span");
span.innerHTML = "<b>blah</b>";
alert(document.head);
alert(document.body);
document.body.appendChild(span);

I expect this to display “blah” in my popup but I am getting document.body as null. I am new to js and chrome and my trying to figure out whats going on here. What am I doing wrong?

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1 Answer

  1. Editorial Team

    When the closing script tag is encontered, the corresponding code is directly evaluated.

    Since background.js is loaded in the head, <body> does not exist (yet). Hence, document.body is null.

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