IBM Connections: File download with IE 9 without [1] on extension

File download with Internet Explorer 9 modifies the file extension and so files can’t open with any installed application. Problem occurs with IBM Connections 3.0.1 and 3.0.1 with installed CR3.
IE 9 isn’t supported in the moment, but with a little tweak on IHS side, it is possible, that IE 9 download files without modifying the extension.
Biggest problem here is, that opening attachments will open the “Open with” dialog, because no application is linked to a file extension .pdf[1].

Normal file download with IE9 and IBM Connections:

The http header shows following line for the download file and the name:

Content-Disposition: attachment; filename*=UTF-8'en'%42%6f%6e%75%73%20%53%79%73%74%65%6d%20%76%32%2e%70%70%74%78; size=2563575; creation-date="Fri, 2 Mar 2012 13:37:39 +0100"; modification-date="Fri, 2 Mar 2012 13:37:39 +0100";

Sjaak Ursinus shows modifying http headers to solve issues with Chrome and IBM Connections Files. I made some tests with his explanation and added some lines in http.conf (you have to enable mod_headers and mod_setenvif):

<IfModule mod_setenvif.c>
SetEnvIf User-Agent "MSIE 9\." IE9
<IfModule mod_headers.c>
Header edit Content-Disposition "^(.*)filename\*=UTF-8['a-z]{4}(.*)$" "$1filename*=$2" env=IE9

What does this part of the http.conf?

I set an environment variable IE9, if the user agent contains “MSIE 9”.

The Header edit removes UTF-8’de’ from filename, if the environment variable is IE9 (env=IE9). I modified the regexp, that all languages after UTF-8 were removed. So the http header looks like this:

Content-Disposition: attachment; filename*=%43%41%54%20%53%63%68%6c%c3%bc%73%73%65%6c%2e%65%6d%6c; size=7637; creation-date="Fri, 30 Dec 2011 10:44:20 +0100"; modification-date="Fri, 30 Dec 2011 10:44:20 +0100";

So you can open the file and it will be opened with the linked application for this extension.

7 Replies to “IBM Connections: File download with IE 9 without [1] on extension”

  1. Christoph:
    Appreciate the work done here. And wanted to let you know the the update will introduce support for IE9. Look for it soon on fix central.

  2. This does not seem to be fixed in
    Just installed it in DEV and the issue is still there.
    Also the Greenhouse environment still has the issue

  3. I don’t know why I can’t get this to work. I have added the lines to my http.conf file and restarted my webserver many times.
    Not sure what I am doing wrong?
    These are the lines I added:

    LoadModule headers_module modules/
    LoadModule setenvif_module modules/

    SetEnvIf User-Agent “MSIE 9\.” IE9

    Header edit Content-Disposition “^(.*)filename\*=UTF-8[‘a-z]{4}(.*)$” “$1filename*=$2” env=IE9

    I am using windows (not sure if that makes a difference)?

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