HttpException: No valid statuscode.

[ssbaval]

I have sentry running and looked at my logs - for this error sentry was triggered 237 times in 1 day !.

If the URL is invalid, not found or malformed - I was under the impression that an error widget would be rendered instead ??

Exception is :

HttpException: HttpException: No valid statuscode. Statuscode was 403
  File "cache_manager.dart", line 120, in BaseCacheManager.getFile
  File "<asynchronous suspension>"
  File "cached_image_widget.dart", line 270, in CachedNetworkImageState._animatedWidget
  File "cached_image_widget.dart", line 196, in CachedNetworkImageState.build
  File "framework.dart", line 4047, in StatefulElement.build
  File "framework.dart", line 3941, in ComponentElement.performRebuild
  File "framework.dart", line 3738, in Element.rebuild
  File "framework.dart", line 3924, in ComponentElement._firstBuild
  File "framework.dart", line 4088, in StatefulElement._firstBuild
  File "framework.dart", line 3919, in ComponentElement.mount
  File "framework.dart", line 3101, in Element.inflateWidget
  File "framework.dart", line 5233, in MultiChildRenderObjectElement.mount
  File "framework.dart", line 3101, in Element.inflateWidget
  File "framework.dart", line 2904, in Element.updateChild
  File "framework.dart", line 3961, in ComponentElement.performRebuild
  File "framework.dart", line 3738, in Element.rebuild
  File "framework.dart", line 3924, in ComponentElement._firstBuild
  File "framework.dart", line 4088, in StatefulElement._firstBuild
  File "framework.dart", line 3919, in ComponentElement.mount
  File "framework.dart", line 3101, in Element.inflateWidget
  File "framework.dart", line 5233, in MultiChildRenderObjectElement.mount
  File "framework.dart", line 3101, in Element.inflateWidget
  File "framework.dart", line 5233, in MultiChildRenderObjectElement.mount

[renefloor]

This should be improved in 1.1.2, could you try to verify that?

[guillaumeprevost]

Hello, we're building our App based on your pretty cool plugin ! Thanks for the hard work btw :)

We are running into the same issue: we're loading AWS S3 pictures dynamically, and when the picture doesn't exist, AWS S3 returns an HTTP 403 error (not 404).

Upgrading from 1.1.0 to version 1.1.3 didn't solve the issue :(

Here is the error displayed in the logs:

I/flutter ( 5123): CacheManager: Failed to download file from https://s3-ap-southeast-2.amazonaws.com/friend-theory/url/that/does/not/exist.jpg with error:
I/flutter ( 5123): HttpException: No valid statuscode. Statuscode was 403

The issue is that the exception is handled and logged by the plugin, so we don't have a way to handle it in our App if we wanted to.

Additionally, because there are a lot of pictures trying to be loaded and they fail to load, the plugin retries to download them every time the widget rebuilds, ending in:

1. Wasted resources
2. A lot of network calls
3. Cluttering the logs with potentially hundreds of this log

The solutions we can suggest are to:

• handle the exception by marking this picture as having failed to load, and retry to load it only after a certain amount of time has passed (in a way, "caching the fact that it failed to load")
• not handle the exception in the plugin and leave it to the caller to handle it if there is an exception
• not ideal but slightly better: simply not show this log which at least would solve point 3.

Cheers!

[dspoonia7]

I'm having this issue as well. Any ETA or plans to get it fixed?

[renefloor]

No sorry, I don't have an ETA for it. I first have to find out why it fails.

[vanlooverenkoen]

We should be able to handle the errors ourselves.

[phpirate]

It makes no sense to fail on a 404, or what ever HTTP response other than 200, this is just really annoying to simply through an exception without notifying the caller, it just makes no sense and really just because of this issue i started to consider other frameworks to use rather than Flutter, even though i love it!

[vanlooverenkoen]

This should be fixed in the latest flutter version. Stable release will probably this week

[renefloor]

@vanlooverenkoen how did the Flutter framework fix this? What was the PR or issue for it?