Move platform code to index so that lib/jsonld is platform-independent

lib/index.js

@@ -5,4 +5,8 @@
  *
  * Copyright 2010-2021 Digital Bazaar, Inc.
  */
-module.exports = require('./jsonld');
+const platform = require('./platform');
+const jsonld = require('./jsonld');
+platform.setupGlobals(jsonld);
+platform.setupDocumentLoaders(jsonld);
+module.exports = jsonld;

lib/jsonld.js

@@ -34,7 +34,6 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 const canonize = require('rdf-canonize');
-const platform = require('./platform');
 const util = require('./util');
 const ContextResolver = require('./ContextResolver');
 const IdentifierIssuer = util.IdentifierIssuer;
@@ -1024,9 +1023,6 @@ jsonld.RequestQueue = require('./RequestQueue');
 /* WebIDL API */
 jsonld.JsonLdProcessor = require('./JsonLdProcessor')(jsonld);
 
-platform.setupGlobals(jsonld);
-platform.setupDocumentLoaders(jsonld);
-
 function _setDefaults(options, {
   documentLoader = jsonld.documentLoader,
   ...defaults

package.json

@@ -114,7 +114,7 @@
     ]
   },
   "browser": {
-    "./lib/index.js": "./lib/jsonld.js",
+    "./lib/index.js": "./lib/index.js",
     "./lib/platform.js": "./lib/platform-browser.js",
     "crypto": false,
     "http": false,