Cached images stop working after cache expiration time

[volgin]

After about 24 hours Cached images with Google cloud storage URLs start throwing this error:

Failed assertion: line 362 pos 12: '_codec != null': is not true.

I tried to comment out this line of code in flutter_cache_manager.dart:

if (eTag != null) { // headers["If-None-Match"] = eTag; }

and it solved the problem

[renefloor]

Could you turn on debug logging with CacheManager.showDebugLogs = true; and give me the logs? Could you also give me the image url, maybe I can try to replicate it.

[volgin]

Everything works until cache expires:

I/flutter (18997): [Flutter Cache Manager] Loading https://lh3.googleusercontent.com/d3JHYHTB4M7Hubtt_ZBXb238BYr1teMd8cwl7Yb_3edLoR5vij-ih51U-KZztbwh_-3r1IWQNzqHAO_CbaYn3FG-PNQ=s94
I/flutter (18997): Using file from cache.
I/flutter (18997): Cache valid till 2018-04-10T16:19:04.976
I/flutter (18997): [Flutter Cache Manager] Loading https://lh3.googleusercontent.com/IjfUqu_Ynxlj16WGbKR0aBDaFsQ5UN_nzs1Wo16t9PSksvtIflbrprfoZW_ze_rfdcjyEE6U0EBz_ELmmcuyXCBMd7I=s94
I/flutter (18997): Using file from cache.
I/flutter (18997): Cache valid till 2018-04-10T16:19:04.669
I/flutter (18997): [Flutter Cache Manager] Loading https://lh3.googleusercontent.com/Hjwzysnfpk2ZRecZbncvLjI6ahdXPY53FQ_cvHl46j92MiutKkad73P3m-MlHQlPVuYooQUm1aZE_LDG1cyY1DsCs1E=s94
I/flutter (18997): Using file from cache.
I/flutter (18997): Cache valid till 2018-04-10T16:19:04.643

I will update when it expires and starts throwing errors again.

[volgin]

Here we go. Note that there are no debug messages even though showDebugLogs = true.

I/flutter (13317): Show full size: https://lh3.googleusercontent.com/IjfUqu_Ynxlj16WGbKR0aBDaFsQ5UN_nzs1Wo16t9PSksvtIflbrprfoZW_ze_rfdcjyEE6U0EBz_ELmmcuyXCBMd7I=s1794
I/flutter (13317): Player init. Recording title: 
E/flutter (13317): [ERROR:topaz/lib/tonic/logging/dart_error.cc(16)] Unhandled exception:
E/flutter (13317): 'package:flutter/src/painting/image_stream.dart': Failed assertion: line 362 pos 12: '_codec != null': is not true.
E/flutter (13317): #0      _AssertionError._doThrowNew (dart:core/runtime/liberrors_patch.dart:37:39)
E/flutter (13317): #1      _AssertionError._throwNew (dart:core/runtime/liberrors_patch.dart:33:5)
E/flutter (13317): #2      MultiFrameImageStreamCompleter._handleCodecReady (package:flutter/src/painting/image_stream.dart)
E/flutter (13317): #3      _RootZone.runUnary (dart:async/zone.dart:1381:54)
E/flutter (13317): #4      _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
E/flutter (13317): #5      Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:633:45)
E/flutter (13317): #6      Future._propagateToListeners (dart:async/future_impl.dart:662:32)
E/flutter (13317): #7      Future._completeError (dart:async/future_impl.dart:485:5)
E/flutter (13317): #8      _SyncCompleter._completeError (dart:async/future_impl.dart:55:12)
E/flutter (13317): #9      _Completer.completeError (dart:async/future_impl.dart:27:5)
E/flutter (13317): #10     CachedNetworkImageProvider._loadAsync (package:cached_network_image/cached_network_image.dart)
E/flutter (13317): <asynchronous suspension>
E/flutter (13317): #11     CachedNetworkImageProvider.load (package:cached_network_image/cached_network_image.dart:457:16)
E/flutter (13317): #12     ImageProvider.resolve.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:265:86)
E/flutter (13317): #13     ImageCache.putIfAbsent (package:flutter/src/painting/image_cache.dart:82:22)
E/flutter (13317): #14     ImageProvider.resolve.<anonymous closure> (package:flutter/src/painting/image_provider.dart:265:63)
E/flutter (13317): #15     SynchronousFuture.then (package:flutter/src/foundation/synchronous_future.dart:38:29)
E/flutter (13317): #16     ImageProvider.resolve (package:flutter/src/painting/image_provider.dart:263:30)
E/flutter (13317): #17     DecorationImagePainter.paint (package:flutter/src/painting/decoration_image.dart:239:55)
E/flutter (13317): #18     _BoxDecorationPainter._paintBackgroundImage (package:flutter/src/painting/box_decoration.dart:397:19)
E/flutter (13317): #19     _BoxDecorationPainter.paint (package:flutter/src/painting/box_decoration.dart:415:5)
E/flutter (13317): #20     RenderDecoratedBox.paint (package:flutter/src/rendering/proxy_box.dart:1850:16)
E/flutter (13317): #21     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2018:7)
E/flutter (13317): #22     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:130:13)
E/flutter (13317): #23     _RenderStack&RenderBox&ContainerRenderObjectMixin&RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:2207:15)
E/flutter (13317): #24     RenderStack.paintStack (package:flutter/src/rendering/stack.dart:593:5)
E/flutter (13317): #25     RenderStack.paint (package:flutter/src/rendering/stack.dart:601:7)
E/flutter (13317): #26     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2018:7)
E/flutter (13317): #27     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:130:13)
E/flutter (13317): #28     _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:125:15)
E/flutter (13317): #29     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2018:7)
E/flutter (13317): #30     PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:110:11)
E/flutter (13317): #31     PaintingContext._compositeChild (package:flutter/src/rendering/object.dart:147:7)
E/flutter (13317): #32     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:128:7)
E/flutter (13317): #33     _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:125:15)
E/flutter (13317): #34     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2018:7)
E/flutter (13317): #35     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:130:13)
E/flutter (13317): #36     RenderAnimatedOpacity.paint (package:flutter/src/rendering/proxy_box.dart:853:17)
E/flutter (13317): #37     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2018:7)
E/flutter (13317): #38     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:130:13)
E/flutter (13317): #39     _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:125:15)
E/flutter (13317): #40     RenderFractionalTranslation.paint (package:flutter/src/rendering/proxy_box.d

[p30arena]

I think I'm having a similar issue, but after rebuilding the app it is gone.
I'll open an issue as soon as it happens again, with traces of course.
https://youtu.be/RoJFvuhxFh8

@volgin please wrap the logs and codes in the code markup, your'e referencing other issues unintentionally.

[renefloor]

Hmm.. It doesn't directly show something I can work with, but I'll dig into it. Are you using version 0.4.0-rc.1 of the library?

[volgin]

Yes, I am using 0.4.0-rc.1.

Again, I commented out line 249 in flutter_cache_manager.dart, and it solves the problem. I hope it helps. This is the output after this line is commented out:

I/flutter (18013): [Flutter Cache Manager] Loading https://lh3.googleusercontent.com/JFFfSuPRCOj8nNgy7o-_uJkeig4j_Zzq2Mr9Ogj45X5Hnjq_Qm-URWnTXkpgfk5m7EdpLN1d_tRLUcNhvo3GBeRjngc=s94
I/flutter (18013): Updating file in cache.
I/flutter (18013): New cache file valid till 2018-04-11T18:25:08.807

[renefloor]

@volgin there was indeed something wrong with the headers. It should now be working fine in version 0.4.0. Thanks for helping.