VisualEditor: Difference between revisions

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|screenshot=MW1 24-visual-editor-test.png
|screenshot=MW1 24-visual-editor-test.png
|author_location=Berlin
|author_location=Berlin
|mediawiki=1.24 (or better)
|mediawiki=1.24 (or better). However, as of dec 2016, we recommend at least version 1.27. Also, installation and configuration procedures are different for older versions.
|dependencies=node.js, parsoid
|dependencies=node.js, parsoid
|status=beta
|status=beta
|last_version=0.1.0 (as of June 2014)
|last_version=0.1.0 (as of April 2015). But there are several 0.1.0 subminor versions. E.g. on Dec 2016 it was (9da5996)
|programming language=JavaScript, PHP
|programming language=JavaScript, PHP
|alternative=none
|alternative=none
|website=https://www.mediawiki.org/wiki/Extension:VisualEditor
|website=https://www.mediawiki.org/wiki/Extension:VisualEditor
|support_website=https://www.mediawiki.org/wiki/Extension:VisualEditor
|support_website=https://www.mediawiki.org/wiki/Extension:VisualEditor, https://www.mediawiki.org/wiki/VisualEditor,
|last_edit=2015/04/20
|last_edit=2015/04/20
}}
}}
== Introduction ==
== Introduction ==


Line 20: Line 21:


* [https://www.mediawiki.org/wiki/Extension:VisualEditor Extension:VisualEditor]
* [https://www.mediawiki.org/wiki/Extension:VisualEditor Extension:VisualEditor]
* [https://www.mediawiki.org/wiki/Parsoid Parsoid], implemented with [http://en.wikipedia.org/wiki/Node_js Node.js]
* [https://www.mediawiki.org/wiki/Parsoid Parsoid], a combined MediaWiki and HTML parser implemented with [http://en.wikipedia.org/wiki/Node_js Node.js]


I managed to get this installed and working, both on a test server and in this wiki. Anyhow, VisualEditor does seem work on MediaWiki 1.24, but the installation is very tricky. VisualEditor also seems to handle most pages that include templates and semantic forms. I don't think that semantic tags will work, but since we always use semantic forms that's more or less ok. Though, I consider moving forms-based pages into a special name space. Will have to do some extra testing however - [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 18:38, 26 June 2014 (CEST).  
I managed to get this installed and working, both on a test server and in this wiki. Anyhow, VisualEditor does seem work on MediaWiki 1.24 and 1.25 and 1.27 but the installation is very tricky and the software combination needs to be right. VisualEditor also seems to handle most pages that include templates and semantic forms. I don't think that semantic tags will work, but since we always use semantic forms that is more or less ok. Though, I consider moving forms-based pages into a special name space. Will have to do some extra testing however - [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 18:38, 26 June 2014 / Sept. 2015.  


Notice: This extension sometimes breaks (depending on the combo of installed versions) - [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 15:48, 19 September 2014 -  [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 12:37, 17 April 2015 (CEST). Therefore upgrade on a test server first, if you are keen to have this working all the time.
Notice: This extension sometimes breaks (depending on the combo of installed versions) - [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 15:48, 19 September 2014 -  [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 12:37, 17 April 2015 (CEST). Therefore upgrade your wiki on a test server first, if you are keen to have this working all the time.


== MediaWiki 1.24 installation notes ==
== Installation notes for MW 1.27x under Ubuntu 16.x ==


'''Made for Ubuntu 14.04 LTS''' (and should be somewhat useful for most Debian systems)
It seems to be working for now - [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 20:01, 6 December 2016 (CET)


=== Download and install the extension ===
=== Pre-requisites ===


cd installdir
* A node.js server and its npm package manager must be installed on your machine. To check if it exists, type <code>nodjs --version</code>


Update your wiki first to the recent patches
  sudo apt-get install nodejs
  git pull
  sudo apt-get install npm
 
Get and install the VisualEditor extension
  cd extensions
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/VisualEditor.git
cd VisualEditor
Initialize the submodule (whatever that is ...)
git submodule update --init


Adjust the version
* Curl must be installed, including the php library.
git checkout REL1_24


So far, I did not manage to make it run under REL1_25 Beta - [[User:Daniel K. Schneider|Daniel K. Schneider]] ([[User talk:Daniel K. Schneider|talk]]) 15:46, 17 April 2015 (CEST). After clicking on the edit button, nothing happens (and no php errors).
sudo apt-get install curl
sudo apt-get install php7.0-curl
sudo apt-get install php-curl
sudo apachectl restart


=== Download and install the parsoid ===
=== Installation of Parsoid ===


This depends on your OS. For Ubuntu 12.04 LTS you cannot use the official distro as explained in the [https://www.mediawiki.org/wiki/Parsoid/Setup official setup] documentation.
Parsoid is a service that will run under node.js server and that will do the backend of the editing process, i.e. parse MediaWiki and HTML.


==== Install Parsoid (part I) ====
If you have old developper versions installed it could be a good idea to remove these.
My new install only started working after:
sudo apt-get --purge remove parsoid
rm -r /usr/lib/parsoid
etc.
My system admin skills are fairly low and I cannot explain why I had to remove every trace of an old parsoid...


Firstly add a key
'''''Installing/upgrading parsoid'''''
gpg --keyserver keys.gnupg.net --recv-keys 5C927F7C
gpg -a --export 5C927F7C | sudo apt-key add -
and edit the /etc/apt/sources.list file:
deb [arch=amd64] http://parsoid.wmflabs.org:8080/deb wmf-production main


Then get/install Parsoid
sudo apt-key advanced --keyserver pgp.mit.edu --recv-keys 90E9F83F22250DD7
sudo apt-add-repository "deb https://releases.wikimedia.org/debian jessie-mediawiki main"
sudo apt-get install apt-transport-https
  sudo apt-get update
  sudo apt-get update
  sudo apt-get install parsoid
  sudo apt-get install parsoid


This will create:
'''''Configure parsoid '''''
* a user ''parsoid'' (uid = 118)
* A Parsoid server that runs on port 8142


Check it it runs, e.g.
Edit file /etc/mediawiki/parsoid/config.yaml
more  /var/log/parsoid/parsoid.log


Files:
For each wiki, add two lines likes this under '''mwApis:''', one that defines the URL for the API and the other that gives a domain name (same as the one used in LocalSettings.php). Make sure the the API URL does work !
/usr/lib/parsoid # the parsoid installation directory
        mwApis:
/etc/default/parsoid # default settings for the server (places)
        - # This is the only required parameter,
/etc/mediawiki/parsoid/settings.js # Mediawiki(s) configuration
          uri: 'http://edutechwiki.unige.ch/test/api.php'
/var/log/parsoid/parsoid.log
          domain: 'test'
        - # This is the only required parameter,
          uri: 'http://edutechwiki.unige.ch/your_wiki/api.php'
          domain: 'your_wiki'


With the above Parsoid sits on your machine, but is not yet operational. See further down.
Restart parsoid:
sudo service parsoid restart


==== Install NodeJS, npm and php5-curl if not done ====
=== Installation of the extension ===


apt-get install nodejs
'''Normal users'''
# Create a symbolic link for legacy code (Ubuntu changed node to nodejs since V. 12 or 13....)
ln -s /usr/bin/nodejs /usr/sbin/node
apt-get install npm
# PHP curl module is needed
apt-get install php5-curl
apache2cl restart
On an older Ubuntu you will have to get different (more recent) NodeJS, in place of the one in "official" distribution.
<source lang="bash">
sudo apt-get update
sudo apt-get install -y python-software-properties python g++ make
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install nodejs=0.10*
</source>


Test if it's there, on your serveur:
(tested with MW 1.31, Sept. 2018)
<source lang="bash">
nodejs --version
v0.10.25
</source>


=== Configure Parsoid ===
Take the one from the official [https://www.mediawiki.org/wiki/Special:ExtensionDistributor/VisualEditor extensions directory] and just extract the archive.


==== Continue parsoid install ====
For example, '''do not use this, the URL will change'''
wget https://extdist.wmflabs.org/dist/extensions/VisualEditor-REL1_31-13a585a.tar.gz


Go to the Parsoid '''source''' directory
'''Advanced users'''
  cd /usr/lib/parsoid/src
  cd extensions
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/VisualEditor.git
cd VisualEditor
git submodule update --init


Type
Make sure to select the right version, 'master' probably will not work. Checkout the good version and '''update the submodule again'''
npm install
git checkout REL1_27
: This will take a while and will download extra stuff. ''npm'' seems to be a kind of ''nodejs'' management tool (yes I don't understand anything here...)
git submodule update --init
'''but''', as we said above, for once it is a safer bet to get this extension from the distributor and not via git ....


Test it (again in the src directory)
In LocalSettings.php:
npm test
<source lang="php">


Wait for a while. You will get something like (last lines)
# Visual Editor
        ✓ [[../../New/Cousin]]
        ✓ [[../../../]]
70 passing (8s)


==== Configure parsoid install ====
wfLoadExtension( 'VisualEditor' );


The instructions are a bit confused on the official web sites, e.g. not even the directory locations are clear. According to [https://www.mediawiki.org/wiki/Parsoid/Setup this], if you would like to point the Parsoid web service to your own wiki, go to the parsoid/api directory and create a localsettings.js file based on localsettings.js.example.
// Enable by default for everybody
 
$wgDefaultUserOptions['visualeditor-enable'] = 1;
However, Ubuntu reads the config file from here:
/etc/mediawiki/parsoid/settings.js
 
because:
:<code>/etc/init.d/parsoid</code> reads from <code>/etc/default/parsoid</code> the following configuration defaults:
PARSOID_LOG_FILE=/var/log/parsoid/parsoid.log
PARSOID_SETTINGS_FILE=/etc/mediawiki/parsoid/settings.js
 
Therefore do this:
cd /etc/mediawiki/parsoid/settings.js
: Edit <code>settings.js</code> and define <code>parsoidConfig.setInterwiki</code> as in the examples below:
    // parsoidConfig.setInterwiki( 'test', 'http://localhost/test/api.php' ); // does not work in our wiki (virtual host)
    parsoidConfig.setInterwiki( 'test', 'http://edutechwiki.unige.ch/test/api.php' ); // works
    // parsoidConfig.setInterwiki( 'noconn', 'http://213.127.84.12:80/wikiarst/api.php' );
    //parsoidConfig.setInterwiki( 'disney', 'http://disneychannel.wikia.com/api.php' );
The first argument to setInterwiki is not the "pretty name", but the long one, i.e. the first component you see in the api URL. E.g. for this wiki we use the following settings:
:In LocalSetting.php:
$wgScriptPath     = "/mediawiki";
....
$wgVisualEditorParsoidPrefix = 'mediawiki';
:In settings.js:
parsoidConfig.setInterwiki( 'mediawiki', 'http://edutechwiki.unige.ch/mediawiki/api.php' );
 
In other installs, you may have to edit file ''/usr/lib/parsoid/src/api/localsettings.js'' to add your wikis (you can use several of these). Of course you also should test if the api.php URL works. If you use server aliases, <code>http://localhost/yourwiki</code> may not work at all.
 
After making changes to the config file, '''restart''' the parsoid
/etc/init.d/parsoid restart


=== Configure the extension ===
// Optional: Set VisualEditor as the default for anonymous users
// otherwise they will have to switch to VE
// $wgDefaultUserOptions['visualeditor-editor'] = "visualeditor";


In <code>Localsettings.php</code>, add something like this:
<source lang="php">
# VISUAL Editor
// If this breaks, then you likely have a version mismatch - downgrade visual editor or upgrade the wiki to alpha code
require_once("$IP/extensions/VisualEditor/VisualEditor.php");
// OPTIONAL: Enable VisualEditor in other namespaces
// By default, VE is only enabled in NS_MAIN
//$wgVisualEditorNamespaces[] = NS_PROJECT;
// Enable by default for everybody
$wgDefaultUserOptions['visualeditor-enable'] = 1;
// Don't allow users to disable it
// Don't allow users to disable it
$wgHiddenPrefs[] = 'visualeditor-enable';
$wgHiddenPrefs[] = 'visualeditor-enable';
 
// OPTIONAL: Enable VisualEditor's experimental code features
// OPTIONAL: Enable VisualEditor's experimental code features
//$wgVisualEditorEnableExperimentalCode = true;
#$wgDefaultUserOptions['visualeditor-enable-experimental'] = 1;


// Interwiki prefix to pass to the Parsoid instance - must match what you declared in the parsoid settings
$wgVirtualRestConfig['modules']['parsoid'] = array(
// Parsoid will be called as $url/$prefix/$pagename
// URL to the Parsoid instance
$wgVisualEditorParsoidPrefix = 'test';
// Use port 8142 if you use the Ubuntu or Debian packages
'url' => 'http://your.full.site:8142',
// Parsoid "domain" -- ADAPT TO YOUR NEED, i.e. replace "your_wiki" by the same "domain" name you gave in the yaml.config file.
'domain' => 'your_wiki'
);
</source>


// Declare the Parsoid - Make sure to get the right port
=== Allow visual editing in more than default namespaces ===
$wgVisualEditorParsoidURL = 'http://localhost:8142';


Example (adapt to yours)
<source lang="php>
$wgVisualEditorAvailableNamespaces = [
                                      "0" => true,
                                      "2" => true,
                                      "102" => true,
                                      "104" => true,
                                      "106" => true,
                                      "_merge_strategy" => "array_plus"];
</source>
</source>
Tip: Look at the HTML source of [[Special:AllPages]]. The HTML options menu will list the numbers for your namespaces.


=== Troubleshooting ===
=== Troubleshooting ===
==== New installation is not working ====
It is really really crucial to get the URLs right in the various configuration files
It is really really crucial to get the URLs right in the various configuration files


1) Control if Apache is ok. On the command line, type:
1) Control if Apache is ok. On the command line, type:
   apache2ctl -S
   sudo apache2ctl -S
Depending on your installation you should get something like this (and not some random name that does not match your wiki URL !!)
Depending on your installation you should get something like this (and not some random name that does not match your wiki URL !!)
  VirtualHost configuration:
  VirtualHost configuration:
Line 201: Line 161:
         ServerName edutechwiki.unige.ch
         ServerName edutechwiki.unige.ch


2) Make sure that the Parsoid prefix is correct and consistent. Also, if your server is not setup to deal with the localhost URL, you cannot follow the "official" examples. E.g. for this wiki, the configuration used is the following (at the time of writing, for MW 1_24)
2) Make sure that the Parsoid domain is correct and consistent.
 
3) Uninstall old code and configuration files and start fresh.
 
==== Parsoid did work and stopped working ====
 
This arrived on March 28, 2018, Ubuntu Server 16.04 / Mediawiki 1.27.4. According to [https://www.mediawiki.org/wiki/Extension_talk:VisualEditor a post on Mediawiki] one should install an old version. Firstly make sure that this is the problem
apt-cache show parsoid
If it shows ''pool/main/p/parsoid/parsoid_0.9.0all_all.deb'' then you got version 9 and you could try downgrading. It's probably safer than trying to install a new visual editor that also can break everything, but I just do not know. Also make sure to copy the configuration files in case they go away.
 
 
apt-get purge parsoid
wget https://people.wikimedia.org/~ssastry/parsoid/debs/parsoid_0.8.0all_all.deb
dpkg -i parsoid_0.8.0all_all.deb
apt-mark hold parsoid
 
Remember what you did here. <code>apt-mark hold</code> prevents installing a new package. Revert this after installing a new evething ...
  apt-mark unhold parsoid
 
===  https support ===
 
* Is possible, read the [https://www.mediawiki.org/wiki/Extension:VisualEditor#Parsoid_over_HTTPS official manual page] (not tested so far)
 
* Requires getting and installing certificates...
 
== Tips for old version ==
 
I had VisualEditor going for MW 1.25. After that it broke. You can browse through the wiki history if you are really interested in that ...


In file /etc/mediawiki/parsoid/settings.js:
[[category: Mediawiki documentation]]
parsoidConfig.setInterwiki( 'mediawiki', 'http://edutechwiki.unige.ch/mediawiki/api.php' );
In file LocalSettings.php:
$wgVisualEditorParsoidURL = 'http://localhost:8142';
$wgVisualEditorParsoidPrefix = 'mediawiki';

Latest revision as of 15:51, 13 September 2018

Category:MediaWiki extension
VisualEditor
Extension name VisualEditor
About this article / disclaimer [[Has about meta information::The VisualEditor project aims to create a reliable rich-text editor for MediaWiki. [...] The extension relies on the separate nodeJS-based Parsoid parser service to be up and running in order to edit pages. Stable release is planned for 2014.]]
Logo VisualEditor-logo.svg.png
Screenshot MW1 24-visual-editor-test.png
Location of the main author Berlin
Coordinates of the main authors 52.510885, 13.398937
Developers
Licences
Description
Mediawiki requirements 1.24 (or better). However, as of dec 2016, we recommend at least version 1.27. Also, installation and configuration procedures are different for older versions.
Dependencies node.js, parsoid
Related extensions (documented here)
Related extensions
Discussion
Language support
Status beta
First release date
Last release date (as of 2015/04/20!)
Last version number 0.1.0 (as of April 2015). But there are several 0.1.0 subminor versions. E.g. on Dec 2016 it was (9da5996)
Programming language JavaScript, PHP
Alternatives none
Website home page
Publications
Support websites web site, web site
Example websites
Last edited 2015/04/20


Introduction

The Mediawiki VisualEditor is a Wysiwyg editor for Mediawiki versions that came out in late 2014. The system is also deployed in most Wikipedia versions (however since it is still in Beta, only registered users can use it). Installation of this extension is more complex than usual and requires two components:

I managed to get this installed and working, both on a test server and in this wiki. Anyhow, VisualEditor does seem work on MediaWiki 1.24 and 1.25 and 1.27 but the installation is very tricky and the software combination needs to be right. VisualEditor also seems to handle most pages that include templates and semantic forms. I don't think that semantic tags will work, but since we always use semantic forms that is more or less ok. Though, I consider moving forms-based pages into a special name space. Will have to do some extra testing however - Daniel K. Schneider (talk) 18:38, 26 June 2014 / Sept. 2015.

Notice: This extension sometimes breaks (depending on the combo of installed versions) - Daniel K. Schneider (talk) 15:48, 19 September 2014 - Daniel K. Schneider (talk) 12:37, 17 April 2015 (CEST). Therefore upgrade your wiki on a test server first, if you are keen to have this working all the time.

Installation notes for MW 1.27x under Ubuntu 16.x

It seems to be working for now - Daniel K. Schneider (talk) 20:01, 6 December 2016 (CET)

Pre-requisites

  • A node.js server and its npm package manager must be installed on your machine. To check if it exists, type nodjs --version
sudo apt-get install nodejs
sudo apt-get install npm
  • Curl must be installed, including the php library.
sudo apt-get install curl
sudo apt-get install php7.0-curl
sudo apt-get install php-curl
sudo apachectl restart

Installation of Parsoid

Parsoid is a service that will run under node.js server and that will do the backend of the editing process, i.e. parse MediaWiki and HTML.

If you have old developper versions installed it could be a good idea to remove these. My new install only started working after: 

sudo apt-get --purge remove parsoid
rm -r /usr/lib/parsoid
etc.

My system admin skills are fairly low and I cannot explain why I had to remove every trace of an old parsoid...

Installing/upgrading parsoid 

sudo apt-key advanced --keyserver pgp.mit.edu --recv-keys 90E9F83F22250DD7
sudo apt-add-repository "deb https://releases.wikimedia.org/debian jessie-mediawiki main"
sudo apt-get install apt-transport-https 
sudo apt-get update
sudo apt-get install parsoid

Configure parsoid

Edit file /etc/mediawiki/parsoid/config.yaml

For each wiki, add two lines likes this under mwApis:, one that defines the URL for the API and the other that gives a domain name (same as the one used in LocalSettings.php). Make sure the the API URL does work ! 

       mwApis:
       - # This is the only required parameter,
         uri: 'http://edutechwiki.unige.ch/test/api.php'
         domain: 'test'
       - # This is the only required parameter,
         uri: 'http://edutechwiki.unige.ch/your_wiki/api.php'
         domain: 'your_wiki'

Restart parsoid: 

sudo service parsoid restart

Installation of the extension

Normal users

(tested with MW 1.31, Sept. 2018)

Take the one from the official extensions directory and just extract the archive.

For example, do not use this, the URL will change 

wget https://extdist.wmflabs.org/dist/extensions/VisualEditor-REL1_31-13a585a.tar.gz

Advanced users 

cd extensions
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/VisualEditor.git
cd VisualEditor
git submodule update --init

Make sure to select the right version, 'master' probably will not work. Checkout the good version and update the submodule again 

git checkout REL1_27
git submodule update --init

but, as we said above, for once it is a safer bet to get this extension from the distributor and not via git ....

In LocalSettings.php: 

# Visual Editor

wfLoadExtension( 'VisualEditor' );

// Enable by default for everybody
$wgDefaultUserOptions['visualeditor-enable'] = 1;

// Optional: Set VisualEditor as the default for anonymous users
// otherwise they will have to switch to VE
// $wgDefaultUserOptions['visualeditor-editor'] = "visualeditor";

// Don't allow users to disable it
$wgHiddenPrefs[] = 'visualeditor-enable';

// OPTIONAL: Enable VisualEditor's experimental code features
#$wgDefaultUserOptions['visualeditor-enable-experimental'] = 1;

$wgVirtualRestConfig['modules']['parsoid'] = array(
	// URL to the Parsoid instance
	// Use port 8142 if you use the Ubuntu or Debian packages
	'url' => 'http://your.full.site:8142', 
	// Parsoid "domain" -- ADAPT TO YOUR NEED, i.e. replace "your_wiki" by the same "domain" name you gave in the yaml.config file.
	'domain' => 'your_wiki'
);

Allow visual editing in more than default namespaces

Example (adapt to yours) 

$wgVisualEditorAvailableNamespaces = [
                                      "0" => true,
                                      "2" => true,
                                      "102" => true,
                                      "104" => true,
                                      "106" => true,
                                      "_merge_strategy" => "array_plus"];

Tip: Look at the HTML source of Special:AllPages. The HTML options menu will list the numbers for your namespaces.

Troubleshooting

New installation is not working

It is really really crucial to get the URLs right in the various configuration files

1) Control if Apache is ok. On the command line, type: 

 sudo apache2ctl -S

Depending on your installation you should get something like this (and not some random name that does not match your wiki URL !!) 

VirtualHost configuration:
129.194.7.85:*         edutechwiki.unige.ch (/etc/apache2/sites-enabled/mediawiki.conf:1)

Make very sure that in your Apache mediawiki.conf file you get the right name of your Internet alias, for example: 

 <VirtualHost edutechwiki.unige.ch>
  	ServerAdmin ....@.....
       ServerName edutechwiki.unige.ch

2) Make sure that the Parsoid domain is correct and consistent.

3) Uninstall old code and configuration files and start fresh.

Parsoid did work and stopped working

This arrived on March 28, 2018, Ubuntu Server 16.04 / Mediawiki 1.27.4. According to a post on Mediawiki one should install an old version. Firstly make sure that this is the problem 

apt-cache show parsoid

If it shows pool/main/p/parsoid/parsoid_0.9.0all_all.deb then you got version 9 and you could try downgrading. It's probably safer than trying to install a new visual editor that also can break everything, but I just do not know. Also make sure to copy the configuration files in case they go away. 


apt-get purge parsoid
wget https://people.wikimedia.org/~ssastry/parsoid/debs/parsoid_0.8.0all_all.deb
dpkg -i parsoid_0.8.0all_all.deb
apt-mark hold parsoid

Remember what you did here. apt-mark hold prevents installing a new package. Revert this after installing a new evething ... 

 apt-mark unhold parsoid

https support

  • Requires getting and installing certificates...

Tips for old version

I had VisualEditor going for MW 1.25. After that it broke. You can browse through the wiki history if you are really interested in that ...

Retrieved from "https://edutechwiki.unige.ch/mediawiki/index.php?title=VisualEditor&oldid=69623"