3
我的Silverlight 4個的應用下載相當多的從通過WCF服務的服務器的數據，所以我使用此處描述的技術實現gzip壓縮：http://forums.infragistics.com/blogs/anton_staykov/archive/2010/08/24/silverlight-wcf-service-compression-azure.aspx鉻未能解壓gzip，內容長度
總之，我擴展WCF gzip編碼器示例（http://msdn.microsoft.com/en-us/library/ms751458.aspx）與Silverlight一起使用。服務器使用gzip壓縮WCF響應，並且在客戶端，瀏覽器HTTP堆棧在到達Silverlight之前自動解壓縮響應。一切都很好，壓縮在IE中非常好用。
測試在Chrome同樣的事情，但是，導致這個..
System.Xml.XmlException: The input source is not correctly formatted.
at System.Xml.XmlExceptionHelper.ThrowXmlException(XmlDictionaryReader reader, String res, String arg1, String arg2, String arg3)
at System.Xml.XmlBufferReader.ReadValue(XmlBinaryNodeType nodeType, ValueHandle value)
at System.Xml.XmlBinaryReader.ReadNode()
at System.Xml.XmlBinaryReader.Read()
at System.Xml.XmlBaseReader.ReadEndElement()
at System.ServiceModel.Channels.Message.ReadFromBodyContentsToEnd(XmlDictionaryReader reader, EnvelopeVersion envelopeVersion)
at System.ServiceModel.Channels.Message.ReadFromBodyContentsToEnd(XmlDictionaryReader reader)
at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest)
at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeReply(Message message, Object[] parameters)
at System.ServiceModel.Dispatcher.ProxyOperationRuntime.AfterReply(ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
at DataAccess.Model.Silverlight4.DataAccess.RealTimeDataService.RealTimeDataServiceClient.RealTimeDataServiceClientChannel.EndGetNowTime(IAsyncResult result)
at DataAccess.Model.Silverlight4.DataAccess.RealTimeDataService.RealTimeDataServiceClient.DataAccess.Model.Silverlight4.DataAccess.RealTimeDataService.RealTimeDataService.EndGetNowTime(IAsyncResult result)
at DataAccess.Model.Silverlight4.DataAccess.RealTimeDataService.RealTimeDataServiceClient.OnEndGetNowTime(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
我已經簽出從提琴手兩種瀏覽器的請求2+應答，而且他們都非常接近相同的，一個重要的差異 - 響應的內容長度設置不正確，因爲Chrome。我確信這就是XML SOAP無法解析的原因。由於內容長度不正確，Chrome只解壓了部分內容。是什麼賦予了？爲什麼我的WCF服務會爲Chrome發送錯誤的內容長度但不是IE？我只改變了瀏覽器 - 代碼是相同的，並且響應體是相同的（Fiddler可以很好地解壓縮）。任何人都知道爲什麼會發生這種情況？
提琴手：
~~ 的Internet Explorer 9 ~~
請求
POST http://127.0.0.1:84/services/RealTimeDataService.svc/binary HTTP/1.1
Accept: */*
Referer: http://127.0.0.1:84/ClientBin/Silverlight4.View.xap
Accept-Language: en-US
Content-Length: 207
Content-Type: application/soap+msbin1
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: 127.0.0.1:84
Connection: Keep-Alive
Pragma: no-cache
響應
HTTP/1.1 200 OK
Cache-Control: private,no-cache
Pragma: no-cache
Content-Length: 512
Content-Type: application/soap+msbin1
Content-Encoding: gzip
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Fri, 08 Jul 2011 16:18:09 GMT
~~ 鉻 ~~
請求
POST http://127.0.0.1:84/services/RealTimeDataService.svc/binary HTTP/1.1
Host: 127.0.0.1:84
Connection: keep-alive
Referer: http://127.0.0.1:84/ClientBin/Silverlight4.View.xap
Content-Length: 207
Origin: http://127.0.0.1:84
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.112 Safari/534.30
content-type: application/soap+msbin1
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
響應
HTTP/1.1 200 OK
Cache-Control: private,no-cache
Pragma: no-cache
Content-Length: 149
Content-Type: application/soap+msbin1
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Fri, 08 Jul 2011 16:05:43 GMT
Content-Encoding: gzip
很奇怪。我不知道問題是什麼，但是您可以通過創建一個發送IE發送的應用程序來隔離它，然後逐個緩慢更改標題，看起來像Chrome發送的內容，直到找出造成的原因服務器發回不同的響應。 – RobSiklos
是的，這是一個很奇怪的錯誤。感謝您的好主意，我會嘗試隔離哪個請求標頭影響響應。如果我無法弄清楚，我想我必須將解壓縮邏輯放在Silverlight中。 –
有沒有想到這一點？ – RobSiklos