I have a problem with my Search Results in Sharepoint 2013, When I try to open an Office document the URL (space) changes from %20 to %2520, (for PDF documents no problem...) so I have an error page : A potentially Dangerous Request.Path value was detected from the client (%), and in a listView when I try to open office document in the browser IE9, it try to download (PDF opens in the browser) Any Suggestions?
Probably the "Double Encoding Bug". You can find a workaround here:
The Double Encoding Bug has been fixed in the September 2014 CU of SharePoint 2013. Source: http://www.toddklindt.com/blog/Regressions/sp2013sep2014cu.aspx