Can not search function on Portal screen by IE

Document ID : KB000125657
Last Modified Date : 01/02/2019
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Search on Portal page does not work. 

Reproduction procedure: 
01. Login API Portal 
02. Set any words in the search field and click the search button. 
for example: "API", "APP",... etc 

The following result is always returned. 
"No results matched your search term." 

This problem occurs only in IE. 
It did not occur in chrome or firefox. 
CA will provide a fix in the next CR. (CR11)