Andrea Vettori created WW-5602:
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             Summary: Can't specify empty charset on StreamResult
                 Key: WW-5602
                 URL: https://issues.apache.org/jira/browse/WW-5602
             Project: Struts 2
          Issue Type: Bug
          Components: Dispatch Filter
    Affects Versions: 6.8.0
            Reporter: Andrea Vettori


When serving binary files using StreamResult the Content Type header should NOT 
contain a charset specification.

If the charset is not specified in the StreamResult, UTF-8 is automatically 
applied.

If the charset is specified with an expression, and the expression evaluates to 
null/empty string, an invalid

;charset=

specification is added to the content-type header on the StreamResult.



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