Wiki Preview Generates '414 Request-URI Too Large'

Created by: thelok

The following error is generated when trying to 'preview' a wiki page that has alot of text content:

414 Request-URI Too Large
nginx

The URL is in the format:

https://[myserver.com]/[groupname]/[projectname]/markdown_preview?md_text=[my_entire_page_in_encoded_format]

This issue does not exist if the content being previewed has a small amount of text.

In my specific case the text content is about 16,000 characters. I'm using the latest gitlab release 7.7.0.rc4