Hi,
hiding or redirecting fatal errors is not possible.
They are what the name say - 'fatal' - in such case the viewer could be in inconsistent and unusable state.
Fatal errors itself are shown on:
- unsupported systems (e.g. trying to use html5 but without webgl or css3d support),
- license errors,
- when the loading of xml files fails,
- and when calling the fatalerror() action.
Best regards,
Klaus