I've developed a widget for web app builder that parses through excel files, extracts addresses, geolocates them, and draws a point for them on a map. The widget works great except that occasionally it shoots a "CORS missing allow origin" error.
I'm totally baffled about why this is happening - seems like if it was an actual CORS issue, none of the addresses would go through but it also doesn't seem to be an issue with specific addresses as subsequent runs of the tool will process them just fine. I'm not even using an unusual web service for the locator, just geocode. arcgis.com
Any suggestions?
