How do I allow a cross-site cookie?

ChrisArneson — Wed, 23 Sep 2020 16:43:23 GMT

I am trying to deploy an internal page using the JS 3.33 sample of the Elevation Profile widget. (ArcGIS API for JavaScript Sandbox ) There doesn't appear to be any updated version of it. The sample works perfectly but I do see 29 cookies being affected by SameSite issues when I examine the developer tools. Still it works using the ArcGIS.com background layers.

The moment I try to add any of my own REST services to the map it fails. I believe this must be related to cross-site issues. I can't add even a single feature layer without "Uncaught TypeError: FeatureLayer is not a constructor". I think this is because the page is not allowing me to access both ArcGIS.com functionality (the elevation profile tool) and my internal rest layers. While I am a novice developer I have successfully created several other pages utilizing featurelayers and dynamiclayers. I don't think I have any typos or syntax errors.

I see tons of sites saying that you can use "SameSite=None" somewhere but none of them specify where this might be set. Am I missing something? How do I allow both of these sites to be reached by my page?

topic How do I allow a cross-site cookie? in ArcGIS JavaScript Maps SDK Questions

How do I allow a cross-site cookie?