ASP.NET，GZip和.AXD動態文件播放不好

Question

我試圖爲我正在處理的（asp.netwebforms）網站啓用gzip壓縮。我認爲我有一切工作，但是當我動態加載webresource.axd和scriptresource.axd文件時，它們通過壓縮來實現，因此頁面無法加載依賴於上述文件的內容或（調試時）無數javascript中斷的內容運行時異常，即;無效字符。

這裏是我的Global.ascx.cs代碼的一部分，顯然是連接到PostReleaseRequestState事件。

void OnGlobalPostReleaseRequestState(object sender, EventArgs e) 
{  
     string contentType = Response.ContentType; 

     // Compress only html, style-sheet, and javascript documents. 
     switch (contentType) 
     { 
      case "application/x-javascript": 
      case "text/javascript": 
      case "text/css": 
      case "text/html": 
       { 
        // Get the Accept-Encoding header value to know whether zipping is supported by the browser or not. 
        string acceptEncoding = Request.Headers["Accept-Encoding"]; 
        if (string.IsNullOrEmpty(acceptEncoding)) return; 

        // If gzip is supported then gzip it else if deflate compression is supported then compress in that technique. 
        if (acceptEncoding.Contains("gzip")) 
        { 
         // Compress and set Content-Encoding header for the browser to indicate that the document is zipped. 
         Response.Filter = new GZipStream(Response.Filter, CompressionMode.Compress); 
         Response.AppendHeader("Content-Encoding", "gzip"); 
        } 
        else if (acceptEncoding.Contains("deflate")) 
        { 
         // Compress and set Content-Encoding header for the browser to indicate that the document is zipped. 
         Response.Filter = new DeflateStream(Response.Filter, CompressionMode.Compress); 
         Response.AppendHeader("Content-Encoding", "deflate"); 
        } 
       } 
       break; 
     } 
    } 

和我的web.config與相關部分。

<!-- language-all: lang-xml --> 
<staticContent> 
    <!-- Override IIS default, thus allowing JavaScript compression --> 
    <remove fileExtension=".js" /> 
    <mimeMap fileExtension=".js" mimeType="text/javascript" /> 
</staticContent> 
<httpCompression directory="%SystemDrive%\websites\_compressed" minFileSizeForComp="256"> 
    <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" /> 
    <staticTypes> 
    <add mimeType="text/*" enabled="true" /> 
    <add mimeType="message/*" enabled="true" /> 
    <add mimeType="application/javascript" enabled="true" /> 
    <add mimeType="application/json" enabled="true" /> 
    <add mimeType="*/*" enabled="false" /> 
    </staticTypes> 
    <dynamicTypes> 
    <add mimeType="text/*" enabled="true" /> 
    <add mimeType="message/*" enabled="true" /> 
    <add mimeType="application/x-javascript" enabled="false" /> 
    <add mimeType="*/*" enabled="false" /> 
    </dynamicTypes> 
</httpCompression> 
<urlCompression doStaticCompression="true" doDynamicCompression="true" dynamicCompressionBeforeCache="false" /> 
<httpProtocol> 
    <customHeaders> 
    <add name="Content-Encoding" value="gzip" /> 
    <add name="X-UA-Compatible" value="IE=9" /> 
    </customHeaders> 
</httpProtocol> 

我需要禁用（* .axd）壓縮，或強制它在客戶端解壓縮。請幫助...

Answer 1

好的，所以我想出了我的問題的答案......顯然問這個問題是我需要做的，我自己來回答。首先，IE認爲緩存動態文件（* .axd）的決心很糟糕，因爲我只需要清除IE的緩存（和歷史記錄），並添加一個簡單的對照請求的檢查，如下所示。

void OnGlobalPostReleaseRequestState(object sender, EventArgs e) 
{ 
    if (Request.RawUrl.Contains("ScriptResource.axd", StringComparison.OrdinalIgnoreCase)) 
    { 
     return; 
    } 

    string contentType = Response.ContentType; 

    // Compress only html, style-sheet, and javascript documents. 
    switch (contentType) 
    { 
     case "application/x-javascript": 
     case "text/javascript": 
     case "text/css": 
     case "text/html": 
      { 
       // Get the Accept-Encoding header value to know whether zipping is supported by the browser or not. 
       string acceptEncoding = Request.Headers["Accept-Encoding"]; 
       if (string.IsNullOrEmpty(acceptEncoding)) return; 

       // If gzip is supported then gzip it else if deflate compression is supported then compress in that technique. 
       if (acceptEncoding.Contains("gzip")) 
       { 
        // Compress and set Content-Encoding header for the browser to indicate that the document is zipped. 
        Response.Filter = new GZipStream(Response.Filter, CompressionMode.Compress); 
        Response.AppendHeader("Content-Encoding", "gzip"); 
       } 
       else if (acceptEncoding.Contains("deflate")) 
       { 
        // Compress and set Content-Encoding header for the browser to indicate that the document is zipped. 
        Response.Filter = new DeflateStream(Response.Filter, CompressionMode.Compress); 
        Response.AppendHeader("Content-Encoding", "deflate"); 
       } 
      } 
      break; 
    } 
} 

至於詳細here - 的ScriptResource.axd會自動壓縮，知道了這個我現在可以過濾掉包含scriptresource.axd作爲其原始URL的一部分的任何和所有請求。

使用fiddler我能夠看到（ScriptResource.axd）文件在它們的頭文件中有兩個「gzip」的「Content-Encoding」，一個是自動發生的，一個是我正在追加的。

雙重壓縮==主要頭痛！ :)