HI Guys,
Any help would be hugely appreciated :
I have a GPServer Task see this link THE Extract Data Task and its on ArcGIS server 10.3.1 which is giving me problems when I access it via a AGOL Hosted Viewer and using the Geoprocessing Widget in Internet Explorer 11, the same Hosted Viewer including gp service and widget works perfectly in Chrome no errors reported. The error I get in IE11 is

I have several GP Data Extract Tasks in several viewers and they all fail in IE11
This is the error manifested on the widget

The output file is generated perfectly but the widget cannot display the link
This is the response body just as the error is displayed.......
{"paramName":"Output_Zip_File","dataType":"GPDataFile","value":{"url":"https://secure.dcenr.gov.ie/arcgis/rest/directories/arcgisjobs/apm/apm_extract_2017_gpserver/ja0a922382ecd4dbf898413d757cc9545/scratch/data.zip"}}
So my questions are ...
is there anything obviously wrong with what I'm expecting or doing?
Should this process work with IE11 without any intervention?
Is there any process I can check to help me debug this ?
Should I be securing this and running it via the AGOL hosted proxy ?
Again thanks for reading and any ideas would be appreciated.
Paulg
PS This post may be going to an incorrect Publish location - if possible please recommend a better location