When I'm capturing traffic with Fiddler I'm finding that the contents/src of iframes are not being displayed. The iframes themselves are being loaded on the page. Does anyone know why this would be happening?
More details:
The iframes have their source set to aspx pages and are writing the pdf byte data like so:
Response.ContentType = "Application/pdf";
Response.BinaryWrite(pdfData);
Response.Flush();
Response.Close();
I'm pretty new to using Fiddler but I can't see any obvious issues from the log.
Should have added - I'm using Fiddler2 and IE11, using another browser is not currently an option.
Per our comment thread, you shouldn't use Response.Close() like that as it doesn't end the chunked response properly; use CompleteRequest() instead. I discuss this issue in http://blogs.msdn.com/b/ieinternals/archive/2012/07/16/content-length-and-transfer-encoding-validation-in-ie10-download-manager-couldnt-be-downloaded-retry-cancel.aspx
As far as I know, this issue shouldn't cause the problem you describe (instead causing other problems) but since making this change resolved the problem, I guess there's some relationship I'm not aware of.