Remove safeAttrPrefix usage with src in auth

Author: dlarocque

packages/auth/src/platform_browser/index.ts

@@ -16,8 +16,6 @@
  */
 
 import { FirebaseApp, getApp, _getProvider } from '@firebase/app';
-import { safeAttrPrefix } from 'safevalues';
-import { safeElement } from 'safevalues/dom';
 
 import {
   initializeAuth,
@@ -126,7 +124,7 @@ _setExternalJSProvider({
     // TODO: consider adding timeout support & cancellation
     return new Promise((resolve, reject) => {
       const el = document.createElement('script');
-      safeElement.setPrefixedAttribute([safeAttrPrefix`src`], el, 'src', url);
+      el.setAttribute('src', url);
       el.onload = resolve;
       el.onerror = e => {
         const error = _createError(AuthErrorCode.INTERNAL_ERROR);

packages/auth/src/platform_browser/load_js.test.ts

@@ -18,8 +18,6 @@
 import { expect, use } from 'chai';
 import * as sinon from 'sinon';
 import sinonChai from 'sinon-chai';
-import { safeAttrPrefix } from 'safevalues';
-import { safeElement } from 'safevalues/dom';
 
 import {
   _generateCallbackName,
@@ -46,12 +44,7 @@ describe('platform-browser/load_js', () => {
         loadJS(url: string): Promise<Event> {
           return new Promise((resolve, reject) => {
             const el = document.createElement('script');
-            safeElement.setPrefixedAttribute(
-              [safeAttrPrefix`src`],
-              el,
-              'src',
-              url
-            );
+            el.setAttribute('src', url);
             el.onload = resolve;
             el.onerror = e => {
               const error = _createError(AuthErrorCode.INTERNAL_ERROR);
@@ -72,9 +65,7 @@ describe('platform-browser/load_js', () => {
 
       // eslint-disable-next-line @typescript-eslint/no-floating-promises
       _loadJS('http://localhost/url');
-      expect(safeElement.setPrefixedAttribute).to.have.been.calledWith(
-        [safeAttrPrefix`src`],
-        el,
+      expect(el.setAttribute).to.have.been.calledWith(
         'src',
         'http://localhost/url'
       );