I have the same issue in IE11. Working solution for me was, to browse directly (in a very new Browser-Tab) to:
https://service.sap.com/sap/support/xsearch/default.do
There I was able to insert my search request and search.
I have the same issue in IE11. Working solution for me was, to browse directly (in a very new Browser-Tab) to:
https://service.sap.com/sap/support/xsearch/default.do
There I was able to insert my search request and search.