PR feedback

Author: sam-gc

packages-exp/auth-compat-exp/package.json

@@ -38,7 +38,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "@firebase/app": "0.6.11",
+    "@firebase/app-compat": "0.x",
     "rollup": "2.28.1",
     "rollup-plugin-json": "4.0.0",
     "rollup-plugin-replace": "2.2.0",

packages-exp/auth-compat-exp/src/user.ts

@@ -27,7 +27,7 @@ import { unwrap, Wrapper } from './wrap';
 export class User implements compat.User, Wrapper<externs.User> {
   // Maintain a map so that there's always a 1:1 mapping between new User and
   // legacy compat users
-  private static readonly USER_MAP = new Map<externs.User, User>();
+  private static readonly USER_MAP = new WeakMap<externs.User, User>();
 
   readonly multiFactor: compat.MultiFactorUser;