fetch(+URL,
+Type, -Data)Wrapper around JavaScript fetch(), conversion of the Response
object and waiting for the Promise. Type is an atom or
string that is used as method on the Response object.
Examples are
text, json, html or blob.
The
blob type returns the Data as a string of bytes,
i.e., character codes in the range 0 ... 255.
[det]fetch(+URL,
+Type, -Data)Fetch the content from URL asynchronously. Type is
a method name on the Response object returned by fetch(),
e.g., text, json,
html, blob.
