WKWebView: Inability to update on actual iPhone, though Simulator works

[SpaceviewMob]

After deploying a new version, the simulator can update itself without restarting the app (without any issues), but for a physical iPhone, the following error occurs:

file:///var/mobile/Containers/Data/Application/248629FC-C77B-4A89-917F-B286E7F1C0B0/Library/Application%20Support/vu.space.mobile/cordova-hot-code-push-plugin/2016.01.12-10.17.28/www/index.html
[Error] Failed to load resource (index.html, line 0)

If I manually shut down the app and re-open it, it will have the updated code.

Tested on an iPhone 6 Plus, iOS 9.2 - same specs for Simulator.

One possible wrench thrown in the mix might be that we're using cordova-plugin-wkwebview-engine.

[SpaceviewMob]

This occurs whether manually calling chcp.installUpdate() or allowing it to occur automatically on "resume".

[nikDemyankov]

Understood, will try to reproduce it on my device.

[nikDemyankov]

Yes, it seems the problem is with cordova-plugin-wkwebview-engine. For some reason it doesn't load index page from the external storage.

[hussfelt]

@nikDemyankov First off: this is just pure awesome stuff.
I just want to get this running with WKWebView, could you point me in the right direction or is there anything else I can help with?

[hussfelt]

@nikDemyankov FYI My issue is currently the same, but I can't even restart the app and get the new resources - we just get a blank page after an update is made.

[hussfelt]

@nikDemyankov Confirmed manual update in simulator without WKWebView.

[nikDemyankov]

@hussfelt thanks. Not sure at the moment. I just need to sit down and check what is wrong and how it can be fixed. It's more the timing issue for me. But now I'm starting to plan, what to be done in the next release, so will work on that one soon.

[hussfelt]

@nikDemyankov tell me where to pour the 🍺 !

[nikDemyankov]

I think it has something to do with the bug in WKWebView - https://issues.apache.org/jira/browse/CB-10237 . Although, it does work fine on emulator (both iOS 8 and 9), but it doesn't reload the page automatically on the real device (iOS 9). It just silently ignores reload request and that's it. Will keep digging.

[hussfelt]

@nikDemyankov <3 Thanks! You are plain awesome. 🎅

[Manduro]

@nikDemyankov Could a fix be to use some sort of local proxy server for those requests? Something like this: https://github.com/shazron/CB-8838/tree/master/plugins/cordova-labs-local-webserver
Although this only serves the www folder by default, maybe it could work the same way for the folder with chcp updates?

[nikDemyankov]

@Manduro Yes, that could help. There is another WKWebView plugin, which uses that approach (or something similar). The trick is to make it work with external www folder. And to restart it, when update is installed. I just don't want to make things more complicated then they are already...