Hi
Im trying to upload a 1mb File in salesforce lightning component referring this documentation by Peter(http://peterknolle.com/file-upload-lightning-component/) I am able to upload 500KB files using this code, but when I try to upload a 1mb file, i get this error from the server call which is made to the apex class ERROR "Received exception event aura:systemError from server" 
Any help would be appreciated.
Im using the larger file approach of the above mentioned documentation(CHUNK_SIZE) as my goal is upload a minimum of 4-5 MB of file.

Hey,

I'm makinga simple server call in my component, that returns a list of items used to populate an html <ul>. It was working before winter 17, but after the update i get a undefined Yb error. Im not sure how to debug this, aince i do not see a reference to Yb anywhere and my code was working yesterday.