Fix IE msCrypto.subtle usage (#242)

* Fix IE subtle * rename * Update __tests__/utils.test.ts Co-Authored-By: Josh Cunningham <[email protected]> * Update __tests__/utils.test.ts Co-Authored-By: Josh Cunningham <[email protected]>
auth0 · Oct 14, 2019 · 38c732c · 38c732c
1 parent 78075fe
commit 38c732c
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diff --git a/__tests__/utils.test.ts b/__tests__/utils.test.ts
@@ -527,6 +527,13 @@ describe('utils', () => {
       const theSubtle = getCryptoSubtle();
       expect(theSubtle).toBe('window');
     });
+    it('should use msCrypto.subtle when available', () => {
+      (<any>global).crypto = undefined;
+      (<any>global).msCrypto = { subtle: 'ms' };
+
+      const cryptoSubtle = getCryptoSubtle();
+      expect(cryptoSubtle).toBe('ms');
+    });
   });
   describe('validateCrypto', () => {
     it('should throw error if crypto is unavailable', () => {

diff --git a/src/utils.ts b/src/utils.ts
@@ -183,8 +183,9 @@ export const getCrypto = () => {
 };
 
 export const getCryptoSubtle = () => {
+  const crypto = getCrypto();
   //safari 10.x uses webkitSubtle
-  return window.crypto.subtle || (<any>window.crypto).webkitSubtle;
+  return crypto.subtle || (<any>crypto).webkitSubtle;
 };
 
 export const validateCrypto = () => {