Avatar for Username

Caută ajutor

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Află mai multe

Acest fir de discuție a fost arhivat. Adresează o întrebare nouă dacă ai nevoie de ajutor.

Firefox 33 doesn't display a pdf file when using the response object

cm0117
cm0117
more options

Firefox 33.0.2 does not display pdf files when using the code below from an asp.net program, which works for previous versions of Firefox, and also works with IE. I'm using the built-in pdf viewer. All of my plugins are disabled. 

           Dim strPDF As String
           strPDF = Session("filname")   'pdf filename

           Response.Clear()
           Response.ClearHeaders()
           Response.Buffer = True
           Response.ContentType = "application/pdf"
           Response.CacheControl = "Private"
           Response.AddHeader("Pragma", "no-cache")
           Response.AddHeader("Expires", "0")
           Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate")
           Response.AddHeader("Content-Disposition", "inline; filename=" + strPDF)  
           Response.WriteFile(strPDF)

           Response.Flush()
           Response.Close()
           Response.Clear()
           Response.End()
           Session("filname") = ""
Firefox 33.0.2 does not display pdf files when using the code below from an asp.net program, which works for previous versions of Firefox, and also works with IE. I'm using the built-in pdf viewer. All of my plugins are disabled. Dim strPDF As String strPDF = Session("filname") 'pdf filename Response.Clear() Response.ClearHeaders() Response.Buffer = True Response.ContentType = "application/pdf" Response.CacheControl = "Private" Response.AddHeader("Pragma", "no-cache") Response.AddHeader("Expires", "0") Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate") Response.AddHeader("Content-Disposition", "inline; filename=" + strPDF) Response.WriteFile(strPDF) Response.Flush() Response.Close() Response.Clear() Response.End() Session("filname") = ""

Modificat în de cm0117

Soluție aleasă

What is the result of this code that Firefox receives via the HTTP response headers if you check that with the Live Http Headers extension?

Citește acest răspuns în context 👍 0

Toate răspunsurile (5)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Soluție aleasă

What is the result of this code that Firefox receives via the HTTP response headers if you check that with the Live Http Headers extension?

cm0117
cm0117 Deținătorul întrebării
more options

Below are the results from Live Http Headers. Thanks for your assistance.

HTTP/1.1 200 OK Date: Wed, 05 Nov 2014 15:52:32 GMT Server: Microsoft-IIS/6.0 MicrosoftOfficeWebServer: 5.0_Pub X-Powered-By: ASP.NET X-AspNet-Version: 4.0.30319 Pragma: no-cache Content-Disposition: inline; filename=E:\CustomerData\testfil.pdf Transfer-Encoding: chunked Cache-Control: private Content-Type: application/pdf

cm0117
cm0117 Deținătorul întrebării
more options

Thanks cor-el. You pointed me in the right direction. It appears to me that a reported Firefox 33 bug with the handling of compression (Transfer-Encoding: chunked) is the culprit (https://support.mozilla.org/en-US/questions/1026743). I was able to find a work-around by specifying the file size and buffering. Below is my code, with some code from http://www.codeproject.com/Questions/440054/How-to-Open-any-file-in-new-browser-tab-using-ASP. 

           Dim strPDF As String
           strPDF = Session("filname")   'pdf filename

           Dim User As New WebClient()
           Dim FileBuffer As [Byte]() = User.DownloadData(strPDF)
           If Not (FileBuffer Is Nothing) Then
               Response.Clear()
               Response.ClearHeaders()
               Response.CacheControl = "Private"
               Response.AddHeader("Pragma", "no-cache")
               Response.AddHeader("Expires", "0")
               Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate")
               Response.ContentType = "application/pdf"
               Response.AddHeader("content-length", FileBuffer.Length.ToString())
               Response.BinaryWrite(FileBuffer)

               Response.Flush()
               Response.Close()
               Response.Clear()
               Response.End()
           End If
           Session("filname") = ""
Simson FireFox
Simson FireFox
more options

My problem is different. After updating I tried to display the Banks statement which starts the Adobe PDF reader and then never displays the file. Just a little circle going round and round. I can save the file and double click it to display the file in reader but it will not display in Firefox. Works in IE also.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Hi bmazak, you're right that it's a different problem. Would you mind starting a new question here: https://support.mozilla.org/questions/new/desktop/fix-problems - scroll down past the suggested articles to continue with entering your question.

Also, if you haven't tried using a different viewer, you could check out this article: View PDF files using Firefox’s built-in viewer.