handle error from invalid input

test/common/ops/unlock.test.js

@@ -36,7 +36,7 @@ describe('shared.ops.unlock', () => {
     }
   });
 
-  it('does not unlock lost gear', async () => {
+  it('does not unlock lost gear', async () => { 
     user.items.gear.owned.headAccessory_special_bearEars = false;
 
     await unlock(user, {
@@ -345,4 +345,13 @@ describe('shared.ops.unlock', () => {
     expect(get(user.purchased, backgroundUnlockPath)).to.be.true;
     expect(user.balance).to.equal(usersStartingGems - 1.75);
   });
+
+  it('handles an invalid hair path gracefully', async () => {
+    try {
+      await unlock(user, { query: { path: 'hair.invalid' } });
+    } catch (err) {
+      expect(err).to.be.an.instanceof(BadRequest);
+      expect(err.message).to.equal(i18n.t('invalidUnlockSet'));
+    }
+  });
 });

website/common/script/ops/unlock.js

@@ -36,6 +36,7 @@ function getItemByPath (path, setType) {
   if (setType === 'hair') {
     // itemPathParent is in this format: hair.purple
     const hairType = itemPathParent.split('.')[1];
+    if (!content.appearances.hair[hairType]) return null;
     return content.appearances.hair[hairType][itemKey];
   }