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Only try to use window.crypto.subtle in secure contexts to avoid it throwing and stopping all JavaScript

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Related to https://github.com/vector-im/hydrogen-web/issues/579

```
Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'deriveBits')
	at new Crypto
	at new Platform
	at mountHydrogen
```
This commit is contained in:
Eric Eastwood 2022-02-24 12:13:05 -06:00
parent fc89bfdd53
commit 082d997eed
1 changed files with 4 additions and 1 deletions
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5
src/platform/web/Platform.js
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@ -143,7 +143,10 @@ export class Platform {
this._serviceWorkerHandler.registerAndStart(assetPaths.serviceWorker);
}
this.notificationService = new NotificationService(this._serviceWorkerHandler, config.push);
this.crypto = new Crypto(cryptoExtras);
// `window.crypto.subtle` is only available in a secure context
if(window.isSecureContext) {
this.crypto = new Crypto(cryptoExtras);
}
this.storageFactory = new StorageFactory(this._serviceWorkerHandler);
this.sessionInfoStorage = new SessionInfoStorage("hydrogen_sessions_v1");
this.estimateStorageUsage = estimateStorageUsage;