[FEATURE] Add "onRouteError" Hook

[roblav96]

I'm using vue heavily in my project My Convoy with the cordova native page transitions plugins.

Now when a route error happens, the screenshot to my intended transition stays on the screen thus freezing my app.

It would be nice if we could incorporate something like:

Router.onError( function ( trans, error ) {
    console.error( error )
    window.plugins.nativepagetransitions.cancelPendingTransition()
} )

Is this possible?

Currently I'm doing this:

window.onerror = function ( msg, url, line, column, err ) {
    window.plugins.spinnerDialog.hide()
    window.plugins.nativepagetransitions.cancelPendingTransition()
}

but it would be nice to have the Router method in case an error never occurred.

[yyx990803]

There's an open PR for this: #393
Will probably land in next minor release.

[roblav96]

Awesome! That would be perfect! Thank you

[nblackburn]

This is exactly what i am looking for, looking forward to seeing this added.

[fnlctrl]

@roblav96 @nblackburn
You can actually use beforeEach as onError hook for now:

// vue-router 0.7
router.beforeEach(({next}) => {
   try {
     next()
   } catch (e) {
     // onError hook
     ...

     // After processing error, don't forget to throw it back
     throw e
   }
})

[posva]

Closing as this has been implemented as router.onError