Created attachment 936073 [details] there is 500 error happening in chrome browser and the tags don't auto-match. Description of problem: as summary. Version-Release number of selected component (if applicable): v3.8.11-1 on devel server with chrome. firefox is ok. How reproducible: 100% Steps to Reproduce: 1.open a test case in the chrome browser. 2.then add tags for the case and check the web UI and console. Actual results: in the web page,the tag does not auto-match. in the console,there is 500 error. Expected results: when input part of the tag,it should auto-match out the tags with no errors. Additional info: This only happens on chrome browser.