TOC macro in sidebar creates invalid URL

Summary

If I add a TOC macro to the sidebar the links do not work

Steps to Reproduce

1. Install Confluence 5.9.12 or Confluence 5.10.1
2. Create a page with some headings
3. Go to Space Tools>Look and Feel>sidebar, header and footer
4. Paste this into the sidebar field:

   {toc:maxLevel=2|style=disc|indent=10px|absoluteURL=false}

   or even simply

   {toc}

Expected Results

The links from the TOC would lead to the headings on the page

Actual Results

An invalid URL is created by the links in the sidebar. Please see attached screenshots showing the TOC URLs created by:

• clicking on a TOC macro link in a page
  
  
  compared to
• clicking on a TOC macro link in the sidebar
  
  

Workaround

Adding absoluteUrl=true to the wiki markup for the sidebar helps for some instances.