The request headers aren't being sent on MapImageLayers. but works with FeatureLayerstoken = 'sometoken'; api = 'myproxyserver'; esriConfig.request.interceptors.push({ urls: [`https://${api}v1/GIS/proxy`], before: (params) => { params.requestOptions.headers = {'Authorization': 'Bearer ' + token}; }, headers: {'Authorization': 'Bearer ' + token} });
looks like it's not being sent with the fetchImage function within MapImageLayer.js ...
I think this is related to the responseType of the esriRequest:
When this value is image
the headers
and timeout
options are ignored.
esriRequest - RequestOptions - responseType
request | API Reference | ArcGIS API for JavaScript 4.9
If this is the case, we will consider making an enhancement at a future release.
Hi Nathan, looks like we have this fixed for the upcoming 4.10 release, due out in mid-December. The "headers" will now be honored when the value type is "image". Hope this helps.
-Noah