For the last week I’ve been in the UK where the IFC4 documentation website is mostly unavailable. Navigation to the main page succeeds. Clicking on any chapter yields a 404 response like:
1. Request URL:
http://www.buildingsmart-tech.org/ifc/IFC4/final/html/schema/chapter-2.htm
2. Request Method:
GET
3. Status Code:
404 Not Found
