[web] [Internet explorer] authenticate error: Unsupported operation: No source of cryptographically secure random numbers available

[ductranit]

I used the following code to authenticate user:

 final authDetails = AuthenticationDetails(
        username: email,
        authParameters: List(),
        validationData: {},
        password: password);
    try {
      _session = await _cognitoUser.authenticateUser(authDetails);
    } on CognitoUserCustomChallengeException catch (e) {
      // handle custom challenage
      print('custom challenage $e');
    }  on Error catch (e) {
      print('Error $e');
    }

And then I get the error on IE 11.

Unsupported operation: No source of cryptographically secure random numbers available

It works fine on FireFox, Chrome, Edge. Do you have any suggestion to fix this issue? Could it relate to Crypto package?

[furaiev]

@ductranit is this the full error text? Did you get more details?

[ductranit]

hi @furaiev This is the full stacktrace. Notice that I'm not able to run debug on IE, this log is coming from the flutter build web and python -m http.server to run on localhost

HTML1300: Navigation occurred.
web
start from http://localhost:8000/build/web/#/
Unsupported operation: No source of cryptographically secure random numbers available.
   at P.aDk.prototype.a0V (http://localhost:8000/build/web/main.dart.js?version=10:39397:1)
   at P.b4A (http://localhost:8000/build/web/main.dart.js?version=10:6389:1)
   at D.aLW (http://localhost:8000/build/web/main.dart.js?version=10:17122:13)
   at N.a5F (http://localhost:8000/build/web/main.dart.js?version=10:9583:1)
   at Anonymous function (http://localhost:8000/build/web/main.dart.js?version=10:40516:1)
   at Anonymous function (http://localhost:8000/build/web/main.dart.js?version=10:3794:71)
   at P.aIR.prototype.$2 (http://localhost:8000/build/web/main.dart.js?version=10:33745:18)
   at P.o (http://localhost:8000/build/web/main.dart.js?version=10:3780:17)
   at V.M9.prototype.a1C (http://localhost:8000/build/web/main.dart.js?version=10:40527:1)
   at V.M9.prototype.wz (http://localhost:8000/build/web/main.dart.js?version=10:40509:16)
SCRIPT16389: 
zone.dart (1175,21)

[furaiev]

@ductranit unfortunately, I work on mac and can't check it on IE. Please try to debug it.