Determine if <script>s run inside an importable component

[snuggs]

@brandondees please see the following comment https://github.com/devpunks/snuggsi/pull/109#issuecomment-316996698.

And here is the spec definition https://html.spec.whatwg.org/multipage/scripting.html#the-script-element:dom-document-write-2

In response to a discussion being had https://github.com/whatwg/html/issues/2791#issuecomment-316995586

[brandondees]

do you mean INCLUDE not IMPORT?

with import, I don't know.

with include, I believe we should as often as possible treat the "inlined" content as exactly as possible to how it would behave as if it were there in the document to begin with. meaning, scripts block and execute, imports and stylesheets load, etc. -- to the author, this should be as simple as extracting a shared partial between pages with no unexpected side effects or learning curve.

[snuggs]

both one in the same implementation @brandondees except one doesn't require there being an custom element in markup.

[snuggs]

The do @brandondees