Crash when caching is disabled by HTTP header Cache-Control

[haluzpav]

My server is returning images with these HTTP headers.

Cache-Control: private, no-cache, no-store, must-revalidate
Expires: -1
Pragma: no-cache

This causes crash when used in Telephoto with Coil. The crash does not happen when using only Coil.

In my app (can't share), using me.saket.telephoto:zoomable-image-coil:0.5.0, the image shows up for the first time, and the crash occurs when the screen is re-opened and Telephoto attempts to access is from the cache.

FATAL EXCEPTION: main @coroutine#3232
Process: my.epic.app, PID: 11053
java.io.FileNotFoundException: No content provider: http://10.0.2.2:3000/my-fking-image
	at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:2013)
	at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1842)
	at android.content.ContentResolver.openInputStream(ContentResolver.java:1518)
	at me.saket.telephoto.subsamplingimage.UriImageSource.peek(SubSamplingImageSource.kt:187)
	at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt.isSvg(subSamplingEligibility.kt:56)
	at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt.canBeSubSampled(subSamplingEligibility.kt:26)
	at me.saket.telephoto.zoomable.coil.Resolver.toSubSamplingImageSource(CoilImageSource.kt:153)
	at me.saket.telephoto.zoomable.coil.Resolver.work(CoilImageSource.kt:109)
	at me.saket.telephoto.zoomable.coil.Resolver$work$1.invokeSuspend(Unknown Source:14)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)

In the telephoto:sample app, at the latest commit, it crashes right away.

FATAL EXCEPTION: main
Process: me.saket.telephoto.sample, PID: 20902
java.io.FileNotFoundException: No content provider: http://10.0.2.2:3000/my-fking-image
	at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:2013)
	at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1842)
	at android.content.ContentResolver.openInputStream(ContentResolver.java:1518)
	at me.saket.telephoto.subsamplingimage.UriImageSource.peek(SubSamplingImageSource.kt:187)
	at me.saket.telephoto.subsamplingimage.internal.ExifMetadata$Companion$read$2.invokeSuspend(ExifMetadata.kt:36)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:108)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:793)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:697)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:684)
	Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@8104426, androidx.compose.runtime.BroadcastFrameClock@f14c867, StandaloneCoroutine{Cancelling}@792e614, AndroidUiDispatcher@31e3ebd]

Reproduction steps

1. Let's mock a server somehow - using Mockoon, open this environment, change the body file to any image on your disk, and launch it.
2. In emulator, the endpoint should be accessible at http://10.0.2.2:3000/my-fking-image
3. In the telephoto project, apply these changes containg the URL and other stuff - patch file
4. Launch the sample app and open the Breakfast item. Observe the crash.
5. (bonus) If you uncomment respectCacheHeaders(false), the app no longer crashes, but it gets stuck in cycle, observe "Start" being printed over and over in the log, image never showing up.

Expected: App works with "no-cache" HTTP headers, not attempting to save to cache, either memory or disk, and not crashing. Furthermore, respectCacheHeaders(false) should allow me to use cache, see.

[haluzpav]

More weirdness - the bonus point 5. is working fine when I remove the listener I've added for debugging. 🤔 The app also crashes only the second time I open the larger image, same as in my app.

[janbina]

We are encountering the same crash in our app, however, we are not able to reproduce it. It happened to me once with url that worked before and after just fine, it seems quite random. We can also see quite a bit of such crashes in crashlytics, this is one of them:

java.io.FileNotFoundException: No content provider: https://d34-a.sdn.cz/d_34/c_img_gT_q/dMUUDV.jpeg?fl=res,2100,2000,1
       at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1996)
       at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1825)
       at android.content.ContentResolver.openInputStream(ContentResolver.java:1502)
       at me.saket.telephoto.subsamplingimage.UriImageSource.peek(SubSamplingImageSource.kt:187)
       at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt.isSvg(subSamplingEligibility.kt:56)
       at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt.canBeSubSampled(subSamplingEligibility.kt:26)
       at me.saket.telephoto.zoomable.coil.Resolver.toSubSamplingImageSource(CoilImageSource.kt:153)
       at me.saket.telephoto.zoomable.coil.Resolver.work(CoilImageSource.kt:109)
       at me.saket.telephoto.zoomable.coil.Resolver$work$1.invokeSuspend(CoilImageSource.kt)

You can check the image, it's a real url: https://d34-a.sdn.cz/d_34/c_img_gT_q/dMUUDV.jpeg?fl=res,2100,2000,1

We've been using version 0.5.0, can't confirm it also happens with newer versions as we are not able to reproduce it and we didn't publish app with newer version yet.

[Hospes]

I'm having the same crash reporting on version 0.11.2.
But I can't confirm it happens because of no cashe in headers. We have this header:

Cache-Control:   public, max-age=31919000

Crash report:

      Fatal Exception: java.io.FileNotFoundException: No content provider: https://images.whoppah.com/products/L17DJ822JFEN/P620HF9ZEVQP/vintage-bookcase.jpeg?width=1920
       at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:2020)
       at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1849)
       at android.content.ContentResolver.openInputStream(ContentResolver.java:1525)
       at me.saket.telephoto.subsamplingimage.UriImageSource.peek(SubSamplingImageSource.kt:190)
       at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt.canBeSubSampled(subSamplingEligibility.kt:47)
       at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt.access$canBeSubSampled(subSamplingEligibility.kt:1)
       at me.saket.telephoto.zoomable.coil.SubSamplingEligibilityKt$canBeSubSampled$2.invokeSuspend(subSamplingEligibility.kt:27)
       at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
       at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
       at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:111)
       at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:99)
       at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
       at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:811)
       at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:715)
       at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:702)