1.0.0-rc2 always throws `method not found: 'observe' Receiver: null` after page load

[zoechi]

Observatory listening at http://127.0.0.1:60914/ constructor != null && jsTypeName.length > 0

0 debug_or_assert (dart:html:1256)

1 wrap_jso (dart:html:1182)

2 MutationObserver._create (dart:html:27264)

3 MutationObserver.MutationObserver._ (dart:html:27227)

4 MutationObserver.MutationObserver (dart:html:27326)

5 _ScheduleImmediateHelper._ScheduleImmediateHelper. (dart:html:48747)

6 _RootZone.run (dart:async/zone.dart:1160)

7 _ScheduleImmediateHelper._ScheduleImmediateHelper (dart:html:48744)

8 _scheduleImmediateHelper (dart:html:48770)

9 _scheduleImmediateHelper (dart:html:48769)

10 _scheduleImmediateClosure. (dart:html:48773)

11 _AsyncRun._scheduleImmediate (dart:async-patch/schedule_microtask_patch.dart:10)

12 _scheduleAsyncCallback (dart:async/schedule_microtask.dart:73)

13 _rootScheduleMicrotask (dart:async/zone.dart:957)

14 scheduleMicrotask (dart:async/schedule_microtask.dart:138)

15 Future.Future.microtask (dart:async/future.dart:142)

16 main (http://localhost:63342/polymer1/auto_binding_element/web/index_reflectable_original_main.dart)

17 main (http://localhost:63342/polymer1/auto_binding_element/web/index.dart:26:10)

18 main (http://localhost:63342/polymer1/auto_binding_element/web/index.bootstrap.dart:5:11)

19 main (http://localhost:63342/polymer1/auto_binding_element/web/index.bootstrap.initialize.dart:30:10)

index_reflectable_original_main.dart:1 Exception: The null object does not have a method 'observe'.

NoSuchMethodError: method not found: 'observe' Receiver: null Arguments: [Instance of 'DivElement', attributes: true] main index_reflectable_original_main.dart:1 main index.dart:29 main index.bootstrap.dart:5 main index.bootstrap.initialize.dart:36 main

[zoechi]

Seems again to be a problem with bleeding edge Dartium :-/