In one of the page in where i've XSLT webpart which will populate the documents from the library and show it in table format. Now the issue here is , the icons of the document are not populating especially the PDF icons. This is started when we replace a new WFE server in the farm. In my analysis i found that the image source is
/_layouts/15/images/icpdf.gif ,
and when i checked my new server there is no folder named 15, it contains only 14 and 16. so i had manually added the 15 folder and its contents in the new server.
I thought this will fix the issue but the icons are still not loading in the page. In network traces it shows status code 404
What am i missing ? why the icons are not loading, what i should do to make them available in the page. can anyone please help me to fix this.