Flutter Chrome Web

When I click on Search places in the default project from here - I'm using flutter_google_places: ^0.2.3 in pubspec
════════ Exception caught by widgets library ═══════════════════════════════════════════════════════
The following UnsupportedError was thrown building PlacesAutocompleteWidget(dirty, dependencies: [_InheritedTheme, _LocalizationsScope-[GlobalKey#c60ed]], state: _PlacesAutocompleteOverlayState#914fb):
Unsupported operation: Platform._operatingSystem

When the exception was thrown, this was the stack:
package:build_web_compilers/src/dev_compiler/C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 196:49 throw_
package:build_web_compilers/src/dev_compiler/C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/io_patch.dart 241:5 _operatingSystem
package:build_web_compilers/src/dev_compiler/C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/io/platform_impl.dart 62:40 get operatingSystem
package:build_web_compilers/src/dev_compiler/C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/io/platform.dart 73:45 get _operatingSystem
package:build_web_compilers/src/dev_compiler/C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/utils.dart 77:6 get
...
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (2) Exception caught by widgets library ═══════════════════════════════════════════════════
Failed assertion: boolean expression must not be null
The relevant error-causing widget was:
PlacesAutocompleteWidget org-dartlang-app:///packages/flutter_google_places/src/flutter_google_places.dart:447:43
════════════════════════════════════════════════════════════════════════════════════════════════════