I’m using a standard Skuid theme in lightning. And some of my users are getting this error. Please note, it’s not happening for me (a system admin). And it seems to only happen intermittently for the end users that experience it. In each case, the follow error is available in the console log.
Access to XMLHttpRequest at ‘https://ncontracts–skuid.na65.visual.force.com/resource/skuid__IconsSVG’ (redirected from ‘https://ncontracts–c.na65.visual.force.com/resource/skuid__IconsSVG’) from origin ‘https://ncontracts–c.na65.visual.force.com’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.
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CORS policy issue when using standard skuid theme in Lightning

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