[fetch] Give user entered data: URI documents the HTTPS state 'modern' (#243)

Currently:

https://fetch.spec.whatwg.org/#basic-fetch

leaves data: URI documents with the HTTPS state 'none' if their request's client is null. That means that people testing things by pasting data: URI's directly into a browser's location bar will be getting a document that is not treated as a secure context and therefore is unable to use various new APIs.

We should consider giving user entered data: URI documents the HTTPS state 'modern'.

CC: @mikewest 

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/issues/243