PDF file is not opening in IE8 , from sharepoint documnrt library

Hi ,

We have some PDF file in  SharePoint 2013 document library . When we access file using  IE9 we are not getiing any problem , but when we try to access same file using IE8 , file is not opening.Also, when we open file  with option"Open in new a window " its working fine.

Below is the html genrated for document link:

onmousedown=return VerifyHref(this,event,'0','PdfFile.OpenDocuments','1https://Site/Myweb/_layouts/15/WopiFrame.aspx?sourcedoc=/Myweb/Technology/Java/01%20Java%20Programming/1_Introduction_to_Java.pdf&action=default')

Please suggest solution .