fix(urls): replace base URL regex with url-parse

Reimplements #160.

Closes #150.
Closes #160.

Author: tlvince

package-lock.json

@@ -41,7 +41,8 @@
     "pouchdb-extend": "0.1.2",
     "pouchdb-promise": "6.3.4",
     "pouchdb-utils": "6.3.4",
-    "url-join": "2.0.2"
+    "url-join": "2.0.2",
+    "url-parse": "1.2.0"
   },
   "devDependencies": {
     "babel-preset-env": "^1.6.1",

package.json

@@ -1,14 +1,15 @@
 'use strict';
 
 import urlJoin from 'url-join';
+import urlParse from 'url-parse';
 
 function getBaseUrl(db) {
   if (typeof db.getUrl === 'function') { // pouchdb pre-6.0.0
-    return db.getUrl().replace(/[^/]+\/?$/, '');
+    return urlParse(db.getUrl()).origin;
   } else if (db.__opts && db.__opts.prefix) { // PouchDB.defaults
     return db.__opts.prefix;
   } else { // pouchdb post-6.0.0
-    return db.name.replace(/[^/]+\/?$/, '');
+    return urlParse(db.name).origin;
   }
 }