cannot get the PHP example working

[gstlouisgit]

I have tried all sort of different ways, and I cannot get this to work

I have collabora working, through a proxy and url is something like https://docs.domain.ca
Collabora works fine, mattermost can pull from it, I can do discovery etc etc

However, I want to build this into my web app. So I tried using this example
https://github.com/CollaboraOnline/collabora-online-sdk-examples/tree/master/webapp/php

I've tried a sandbox online with https:// I get the same results
I've tried the apache config provided with modifications to fit my env

I've tried several different settings in coolwsd. Nothing is working

Here is a screenshot of the ui

[gstlouisgit]

I finally got this working.
Server version: Apache/2.4.6 (CentOS 7)

In the apache config file I needed to change the Options

        #Options Indexes MultiViews
        AllowOverride None
        <IfModule !mod_access_compat.c>
                Require all granted
        </IfModule>
        <IfModule mod_access_compat.c>
                Order allow,deny
                Allow from all
        </IfModule>


        Options Indexes FollowSymLinks Includes ExecCGI
        #AllowOverride All
        #Require all granted
        #Allow from all

I also needed to make change to the endpoints file as I did not see the "example_php" in preg_match for the parseWopiRequest function. ( I did not have apache setup with virtual host example_php )

However, now mattermost does not work as I am getting
No acceptable WOPI hosts found matching the target host [mattermost.domain.ca] in config

I have the following setup in coolwsd.xml
alias_groups is mode groups
inside <group> I have
<host allow="true" desc="hostname to allow or deny.">https://domain.ca</host> // custom app that is working
<host allow="true" desc="hostname to allow or deny.">https://mattermost.domain.ca</host> // mattermost url

inside <wopi allow*
<host allow="true" desc="Regex pattern of hostname to allow or deny.">domain\.ca</host>
<host allow="true" desc="Regex pattern of hostname to allow or deny.">mattermost\.domain\.ca</host>

The calls from mattermost are
https://mattermost.domain.ca/plugins/com.collaboraonline.mattermost/collaboraURL?file_id=ebf5a11df7bm5j4187r9f9fcpc

I'm not sure where to do from here. I'm assuming maybe a wildcard would help for inside .