Internet Explorer Progress Bar May Show Incorrect Status

When you browse a page that uses JavaScript functions to retrieve page data, the progress bar in Internet Explorer may not always be accurate. In some instances, the progress bar may appear to indicate that loading of the document has finished when it is still in progress. In other instances it may indicate that loading of the document is still in progress when it is actually complete.

To work around this problem if you are building pages that use JavaScript functions to retrieve page data, keep the user informed of what the browser is doing by updating the progress bar with messages throughout your script. When all of the information has been retrieved, inform the user through the progress bar.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.