Microsoft KB Archive/188763

= PRB: document.readyState Not in Sync with Download in IFrame =

Article ID: 188763

Article Last Modified on 5/11/2006

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APPLIES TO


 * Microsoft Internet Explorer 4.0 128-Bit Edition
 * Microsoft Internet Explorer 4.01 Service Pack 2
 * Microsoft Internet Explorer 4.01 Service Pack 1
 * Microsoft Internet Explorer 5.0

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This article was previously published under Q188763



SYMPTOMS
When you insert an IFrame using insertAdjacentHTML, the readyState is not in sync with the download of the document in the new IFrame. If you check the value of document.readyState immediately after the insertAdjacentHTML, the readyState is set to complete, even though the document in the IFrame has not finished loading.



STATUS
The behavior is by design. Once a document goes readystate complete, Internet Explorer does not fire onreadystatechange again.



Steps to Reproduce Behavior
Here is HTML code that reproduces the problem. When you press the button, an IFrame is inserted before the end of the body. Then, a message box is displayed to show the value of document.readyState. At this point, document.readyState is set to complete. The readyState should change as the document in the IFrame is downloaded.   IFrame/readyState Bug

 Sub btn_onClick document.body.insertAdjacentHTML "BeforeEnd", _ ""

MsgBox "ReadyState: " + document.readyState End Sub    Insert IFrame </BODY> </HTML>

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