Merge pull request #124 from launchdarkly/eb/ch26918/base64-dep

replace Base64 dependency with a package that has a lowercase name

package.json

@@ -78,7 +78,7 @@
     "typescript": "3.0.1"
   },
   "dependencies": {
-    "Base64": "1.0.1",
+    "base64-js": "1.3.0",
     "escape-string-regexp": "1.0.5"
   },
   "repository": {

src/__tests__/EventSender-test.js

@@ -1,4 +1,4 @@
-import Base64 from 'Base64';
+import * as base64 from 'base64-js';
 import sinon from 'sinon';
 
 import EventSender from '../EventSender';
@@ -44,7 +44,9 @@ describe('EventSender', () => {
       s = s + '=';
     }
     s = s.replace(/_/g, '/').replace(/-/g, '+');
-    return decodeURIComponent(escape(Base64.atob(s)));
+    const decodedBytes = base64.toByteArray(s);
+    const decodedStr = String.fromCharCode.apply(String, decodedBytes);
+    return decodeURIComponent(escape(decodedStr));
   }
 
   function decodeOutputFromUrl(url) {

src/utils.js

@@ -1,8 +1,17 @@
-import Base64 from 'Base64';
+import * as base64 from 'base64-js';
 
 // See http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
 export function btoa(s) {
-  return Base64.btoa(unescape(encodeURIComponent(s)));
+  const escaped = unescape(encodeURIComponent(s));
+  return base64.fromByteArray(stringToBytes(escaped));
+}
+
+function stringToBytes(s) {
+  const b = [];
+  for (let i = 0; i < s.length; i++) {
+    b.push(s.charCodeAt(i));
+  }
+  return b;
 }
 
 export function base64URLEncode(s) {