Explicit timeouts in check_domain_access.dart

[isoos]

#5024

[bksubhuti]

Here is the output:

bhante@subhuntu:/mnt/Data/git/buddhist_sun$ dart run lib/Untitled-1.dart
lib/Untitled-1.dart: Warning: Interpreting this as package URI, 'package:buddhist_sun/Untitled-1.dart'.
Testing host resolves...
- pub.dev IPv4 resolve and connect succeeded: 0 / 4
- pub.dev IPv6 resolve and connect succeeded: 0 / 4
- pub.dartlang.org IPv4 resolve and connect succeeded: 1 / 1
- pub.dartlang.org IPv6 resolve and connect succeeded: 0 / 1
- storage.googleapis.com IPv4 resolve and connect succeeded: 6 / 6
- storage.googleapis.com IPv6 resolve and connect succeeded: 0 / 4
Testing one connection per request...
Unhandled exception:
TimeoutException after 0:00:15.000000: Future not completed
bhante@subhuntu:/mnt/Data/git/buddhist_sun$