Jens Geyer created THRIFT-5188:
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             Summary: Occasional ERROR_INSUFFICIENT_BUFFER at 
WinHttpQueryHeaders()
                 Key: THRIFT-5188
                 URL: https://issues.apache.org/jira/browse/THRIFT-5188
             Project: Thrift
          Issue Type: Bug
          Components: Delphi - Library
            Reporter: Jens Geyer


Since {{WinHttpQueryHeaders()}} sometimes returns error 122 
(ERROR_INSUFFICIENT_BUFFER) even if the buffer is large enough. According to 
the docs, WINHTTP_QUERY_FLAG_NUMBER always returns a 32 bit number (which it 
indeed does), but for some strange reason since win 10 build 18636.815 passing 
a DWORD sized buffer is sometimes not enough anymore



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