Confluence - Enabling the html-include Macro

By default, the HTML macros are disabled. You should only turn on these macros if you trust all your users not to attempt to exploit them.

 You need to have System Administrator permissions in order to perform this function. 

To enable the HTML macros,

1. Choose Browse > Confluence Admin.
2. Select 'Plugins' in the left-hand panel. This will display the installed plugins active for this Confluence installation.
3. Click' 'HTML macros', then click 'Enable Plugin'.

To embed an external page,

Use the following syntax:

{html-include:url=http://www.example.com}