fix: Handle invalid Extension Settings (#37)

Author: alexs-mparticle

src/Rokt-Kit.js

@@ -398,14 +398,15 @@ function parseSettingsString(settingsString) {
     try {
         return JSON.parse(settingsString.replace(/"/g, '"'));
     } catch (error) {
-        throw new Error('Settings string contains invalid JSON');
+        console.error('Settings string contains invalid JSON');
     }
+    return [];
 }
 
 function extractRoktExtensions(settingsString) {
     var settings = settingsString ? parseSettingsString(settingsString) : [];
-
     var roktExtensions = [];
+
     for (var i = 0; i < settings.length; i++) {
         roktExtensions.push(settings[i].value);
     }

test/src/tests.js

@@ -1280,5 +1280,19 @@ describe('Rokt Forwarder', () => {
                     .should.deepEqual(expectedExtensions);
             });
         });
+
+        it('should handle invalid setting strings', () => {
+            window.mParticle.forwarder.testHelpers
+                .extractRoktExtensions('NONE')
+                .should.deepEqual([]);
+
+            window.mParticle.forwarder.testHelpers
+                .extractRoktExtensions(undefined)
+                .should.deepEqual([]);
+
+            window.mParticle.forwarder.testHelpers
+                .extractRoktExtensions(null)
+                .should.deepEqual([]);
+        });
     });
 });