* Problem: Source files contain no license info
Solution: Add comments with SPDX license info to source files
* Python 3 files don't need # -*- coding: utf-8 -*-
Skip Referer check on preflight request (OPTIONS) and set Referrer-Policy to origin-when-cross-origin in response to OPTIONS request. Once Referrer-Policy is set on the subsequent POST request referrer is set by the browser to expected value.
Currently, the requests from public websites (like
`bigchaindb.com/getstarted` and tutorials.bigchaindb.com/crab) cannot have the
app_id and app_key required to access IPDB in the web page.
We pass such requests through a web proxy that adds the required headers
to any POST requests from `*.bigchaindb.com`.