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[Stephan <world-wide@xxxxxx>]

Public bug reported:

In Ubuntu 16.04 LTS the file installed by apache2 as /etc/apache2/mods-
available/mime.conf includes the following section:

        #
        # Filters allow you to process content before it is sent to the client.
        #
        # To parse .shtml files for server-side includes (SSI):
        # (You will also need to add "Includes" to the "Options" directive.)
        #
        AddType text/html .shtml
        AddOutputFilter INCLUDES .shtml

The AddOutputFilter line needs mod_include to function correctly. If
mod_include is not enabled, but mime.conf is enabled, then any request
to a file ending on .shtml will cause the following error being printed
in the log:

AH00082: an unknown filter was not added: includes

This can be quite irritating.

It can be fixed by only adding the output filter in case the required
mod_include is available:

<IfModule mod_include.c>
        AddOutputFilter INCLUDES .shtml
</IfModule>

In case this fix is something Ubuntu does not want to fix but expects
from upstream please report accordingly upstream to have a fix included
in Ubuntu.

** Affects: apache2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment removed: "JournalErrors.txt"
   https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1675184/+attachment/4842785/+files/JournalErrors.txt

** Attachment removed: "ProcEnviron.txt"
   https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1675184/+attachment/4842786/+files/ProcEnviron.txt

** Description changed:

  In Ubuntu 16.04 LTS the file installed by apache2 as /etc/apache2/mods-
  available/mime.conf includes the following section:
  
-         #
-         # Filters allow you to process content before it is sent to the client.
-         #
-         # To parse .shtml files for server-side includes (SSI):
-         # (You will also need to add "Includes" to the "Options" directive.)
-         #
-         AddType text/html .shtml
-         AddOutputFilter INCLUDES .shtml
+         #
+         # Filters allow you to process content before it is sent to the client.
+         #
+         # To parse .shtml files for server-side includes (SSI):
+         # (You will also need to add "Includes" to the "Options" directive.)
+         #
+         AddType text/html .shtml
+         AddOutputFilter INCLUDES .shtml
  
  The AddOutputFilter line needs mod_include to function correctly. If
  mod_include is not enabled, but mime.conf is enabled, then any request
  to a file ending on .shtml will cause the following error being printed
  in the log:
  
  AH00082: an unknown filter was not added: includes
  
  This can be quite irritating.
  
  It can be fixed by only adding the output filter in case the required
  mod_include is available:
  
  <IfModule mod_include.c>
-         AddOutputFilter INCLUDES .shtml
+         AddOutputFilter INCLUDES .shtml
  </IfModule>
  
  In case this fix is something Ubuntu does not want to fix but expects
  from upstream please report accordingly upstream to have a fix included
  in Ubuntu.
- 
- ProblemType: Bug
- DistroRelease: Ubuntu 16.10
- Package: apache2 (not installed)
- ProcVersionSignature: Ubuntu 4.8.0-41.44-generic 4.8.17
- Uname: Linux 4.8.0-41-generic x86_64
- ApportVersion: 2.20.3-0ubuntu8.2
- Architecture: amd64
- CurrentDesktop: Unity
- Date: Wed Mar 22 14:13:20 2017
- InstallationDate: Installed on 2017-02-26 (24 days ago)
- InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
- SourcePackage: apache2
- UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1675184

Title:
  mime.conf ignores dependency to mod_include

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