encodeURIComponent behaves differently in browsers for china as location

i have an interesting problem in hand that involves chinese..

i use google custom search and append searched keywords as below..

window.location="http://search.xyz.com/search/cn/zh"+"#"+encodeURIComponent(searchedKeywords);

results in chrome and internet explorer for 搜索 are proper but in firefox no results appear..
in chrome and internet explorer, url created is http://search.xyz.com/search/cn/zh#%E6%90%9C%E7%B4%A2
in firefox, url created is http://search.xyz.com/search/cn/zh#%u641C%u7D22
in chrome and internet explorer, search box that appears in the result page has value æç´¢
in firefox, search box that appears in the result page has value 搜索
in all three browsers, if i search with any valid chinese words, no result appear..

i do include below elements in the file..

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<meta http-equiv="Content-Language" content="zh-CN" />

since the query is formed in the browser using script, my tomcat server is not involved, so we can rule that out..

now how do i show 搜索 in search box in result page of chrome and internet explorer and also achieve the search with valid chinese words..

highly appreciate your help..

来源：https://stackoverflow.com/questions/7715912/encodeuricomponent-behaves-differently-in-browsers-for-china-as-location

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