Contacts not working behind reverse proxy

[schaarsc]

Steps to reproduce

1. setup apache2 reverse proxy in front of NC, with mod_proxy_html and ProxyHTMLEnable On
2. open contacts in nextcloud

Expected behaviour

open available contacts

Actual behaviour

empty page

Server configuration

Web server: Apache2 with mod_proxy_html
Nextcloud version: 14.0.3
Contacts version: 2.1.6

Problem

Contacts is using templates. These templates use file extension .html and are retrieved using GET. Because of the file extension templates are "intercepted" by mod_proxy_html and passed to xml2enc. xml2enc cannot parse the templates and reports "Skipping invalid byte(s) in input stream!". as a result angular.js gets an empty response and the application is not working.

Possible solution

instead of .html use .html_template or .txt for those files

[nextcloud-bot]

GitMate.io thinks possibly related issues are #451 (Contacts ⭐️ does not work), #505 (Contact sorting still doesn't work as expected), #219 (Contacts not working with NC12), #447 (Contacts doesn't work at all...), and #576 (upload of contacts does not work anymore).

[skjnldsv]

Contacts 3.0.0 (beta) doesn't use templates like that anymore and works behind reverse proxy :)