Playframework：客戶端獲取504 HTTP錯誤從Ok.sendFile

Question

對於我的POST端點之一的回報，我有

Ok.sendFile(
     content = csvFile, 
     fileName = (_ => csvFile.fileName), 
     onClose = csvFile.cleanup 
    ) 

它發送一個CSV文件到客戶端。我遇到的問題是，當csv文件太大（對某些客戶端很少發生）時，它們會收到504網關超時錯誤。

The character encoding of the plain text document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the file needs to be declared in the transfer protocol or file needs to use a byte order mark as an encoding signature. 

當文件成功傳輸時不出現。

Answer 1

正如討論gitter：增加E​​LB的超時值（默認值爲60秒）。