I am trying to call REST APIs from openlaszlo. I tried to make a dataset http
request and it worked fine on success. But in case where the REST returns an
error like HTTP Error 401 – Unauthorized I can’t read the error string or code.
It behaves as the following:
On proxied mode: dataset.getErrorString()always return null while in debugger
there is a message showing the error type but we can’t access it
On non proxied mode: calling dataset.getErrorString() result in error “client
could not parse XML from server”
Using Xmlhttprequest is also not helpful where it always cast errors types to
http error 500
In order to support calling basic REST APIs, I need to get a clear HTTP Error
code and also be able to read the http content in case of error.
