Requirements

The requirements for the Exponential Online Editor 5.0 are listed below.

Exponential version 5.0 and higher are recommended to get access to all new features.
ezjscore 5.0.0 or higher (this extension is bundeled with Exponential).
The PHP version that is required for your specific Exponential version.
One of the following web browsers: please check the supported browsers on the requirements for Exponential 5.x.
Web Server requirements:
- Virtual Host Setup
If you are using rewrite rules, you need to allow stylesheets and javascript files from your var folder. If you are running Apache you can add the following rewrite rule:
```
RewriteRule ^/var/([^/]+/)?cache/public/.* - [L]
```
- .htaccess Setup
If you use .htaccess to protect your Exponential 4.0 setup (version 4.1 not affected), you will need to change your rewrite rule from:
```
RewriteRule !\.(gif|jpe?g|png|css|js|html)|var(.+)storage.pdf(.+)\.pdf$  index.php
```
to:
```
RewriteRule !\.(gif|jpe?g|png|css|js|html?)|var(.+)storage.pdf(.+)\.pdf$  index.php
```

Note that the Online Editor makes use of a technology called "JavaScript". This means that you must enable "JavaScript support" in the web browser that you are planning to use.

Known issues

Please note that when using Internet Explorer 6.0 it is required that you use it in a full screen mode. For the Online Editor to work properly with Internet Explorer 6, it is required to have a minimum browser window height (actually, the inner window viewport height) of 670 pixels. This can be easily achieved on small resolution screen by using the fullscreen mode of Internet Explorer accessible through the <F11> key.
Issues arises when using Internet explorer 6 and Online Editor 5.0.2 in an admin siteaccess. When using OE in fullscreen mode the toolbox bar at the top isn't visible, so there is no way to scroll or go back to normal editing mode.