Add check for Apache mod_filter to ensure "AddOutputFilterByType" works. (#7419)

* Update .htaccess

Add check for Apache mod_filter to ensure "AddOutputFilterByType" works.

* Explicit enabling mod_filter in our Docker images

---------

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

.devcontainer/Dockerfile

@@ -15,7 +15,7 @@ RUN rm -f /etc/apache2/conf.d/languages.conf /etc/apache2/conf.d/info.conf \
 		/etc/apache2/conf.d/status.conf /etc/apache2/conf.d/userdir.conf && \
 	sed -r -i "/^\s*LoadModule .*mod_(alias|autoindex|negotiation|status).so$/s/^/#/" \
 		/etc/apache2/httpd.conf && \
-	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
+	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|filter|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
 		/etc/apache2/httpd.conf && \
 	sed -r -i "/^\s*(CustomLog|ErrorLog|Listen) /s/^/#/" \
 		/etc/apache2/httpd.conf

Docker/Dockerfile

@@ -37,7 +37,7 @@ LABEL \
 RUN a2dismod -q -f alias autoindex negotiation status && \
 	a2dismod -q auth_openidc && \
 	phpdismod calendar exif ffi ftp gettext mysqli posix readline shmop sockets sysvmsg sysvsem sysvshm xsl && \
-	a2enmod -q deflate expires headers mime remoteip setenvif && \
+	a2enmod -q deflate expires filter headers mime remoteip setenvif && \
 	a2disconf -q '*' && \
 	a2dissite -q '*' && \
 	a2ensite -q 'FreshRSS*'

Docker/Dockerfile-Alpine

@@ -35,7 +35,7 @@ RUN rm -f /etc/apache2/conf.d/languages.conf /etc/apache2/conf.d/info.conf \
 		/etc/apache2/conf.d/status.conf /etc/apache2/conf.d/userdir.conf && \
 	sed -r -i "/^\s*LoadModule .*mod_(alias|autoindex|negotiation|status).so$/s/^/#/" \
 		/etc/apache2/httpd.conf && \
-	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
+	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|filter|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
 		/etc/apache2/httpd.conf && \
 	sed -r -i "/^\s*(CustomLog|ErrorLog|Listen) /s/^/#/" \
 		/etc/apache2/httpd.conf && \

Docker/Dockerfile-Newest

@@ -36,7 +36,7 @@ RUN rm -f /etc/apache2/conf.d/languages.conf /etc/apache2/conf.d/info.conf \
 		/etc/apache2/conf.d/status.conf /etc/apache2/conf.d/userdir.conf && \
 	sed -r -i "/^\s*LoadModule .*mod_(alias|autoindex|negotiation|status).so$/s/^/#/" \
 		/etc/apache2/httpd.conf && \
-	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
+	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|filter|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
 		/etc/apache2/httpd.conf && \
 	sed -r -i "/^\s*(CustomLog|ErrorLog|Listen) /s/^/#/" \
 		/etc/apache2/httpd.conf && \

Docker/Dockerfile-Oldest

@@ -35,7 +35,7 @@ RUN rm -f /etc/apache2/conf.d/languages.conf /etc/apache2/conf.d/info.conf \
 		/etc/apache2/conf.d/status.conf /etc/apache2/conf.d/userdir.conf && \
 	sed -r -i "/^\s*LoadModule .*mod_(alias|autoindex|negotiation|status).so$/s/^/#/" \
 		/etc/apache2/httpd.conf && \
-	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
+	sed -r -i "/^\s*#\s*LoadModule .*mod_(deflate|expires|filter|headers|mime|remoteip|setenvif).so$/s/^\s*#//" \
 		/etc/apache2/httpd.conf && \
 	sed -r -i "/^\s*(CustomLog|ErrorLog|Listen) /s/^/#/" \
 		/etc/apache2/httpd.conf && \

p/.htaccess

@@ -18,8 +18,10 @@ AddDefaultCharset	UTF-8
 	AddCharset	UTF-8	.js
 </IfModule>
 
-<IfModule mod_deflate.c>
-	AddOutputFilterByType DEFLATE application/javascript application/json application/xhtml+xml image/svg+xml text/css text/html
+<IfModule mod_filter.c>
+	<IfModule mod_deflate.c>
+		AddOutputFilterByType DEFLATE application/javascript application/json application/xhtml+xml image/svg+xml text/css text/html
+	</IfModule>
 </IfModule>
 
 <IfModule mod_expires.c>