A better fix.

Former-commit-id: 94826dd7401ed7f3b07cf397c1079c563dd1e5ca
Former-commit-id: 153a7543f7cd31b1848b6343036c0ecf1780b4e1

src/ImageProcessor.Web/HttpModules/ImageProcessingModule.cs

@@ -453,35 +453,17 @@ namespace ImageProcessor.Web.HttpModules
 
                     if (context.Items[CachedResponseFileDependency] == null)
                     {
-                        context.Items[CachedResponseFileDependency] = new List<string> { cachedPath };
-                    }
-
-                    string incomingEtag = context.Request.Headers["If-None-Match"];
-
-                    if (incomingEtag != null && !isNewOrUpdated)
-                    {
-                        // Set the Content-Length header so the client doesn't wait for
-                        // content but keeps the connection open for other requests.
-                        context.Response.AddHeader("Content-Length", "0");
-                        context.Response.StatusCode = (int)HttpStatusCode.NotModified;
-
                         if (isFileLocal)
                         {
-                            // Set the headers and quit. 
                             // Some services might only provide filename so we can't monitor for the browser.
-                            this.SetHeaders(
-                                context,
-                                (string)context.Items[CachedResponseTypeKey],
-                                Path.GetFileName(requestPath) == requestPath ? new List<string> { cachedPath } : new List<string> { requestPath, cachedPath });
+                            context.Items[CachedResponseFileDependency] = Path.GetFileName(requestPath) == requestPath
+                                ? new List<string> { cachedPath }
+                                : new List<string> { requestPath, cachedPath };
                         }
                         else
                         {
-                            this.SetHeaders(context, (string)context.Items[CachedResponseTypeKey], new List<string> { cachedPath });
+                            context.Items[CachedResponseFileDependency] = new List<string> { cachedPath };
                         }
-
-                        // Complete the requests but don't abort the thread.
-                        context.ApplicationInstance.CompleteRequest();
-                        return;
                     }
 
                     // The cached file is valid so just rewrite the path.

src/TestWebsites/MVC/Views/Web.config

@@ -49,9 +49,6 @@
   </system.web>
 
   <system.webServer>
-    <staticContent>
-      <clientCache setEtag="false"/>
-    </staticContent>
     <validation validateIntegratedModeConfiguration="false" />
     <handlers>
       <remove name="BlockViewHandler"/>