Update query's "outSr" request parameter to conform with ArcGIS REST API documentation

[agbq]

Browser and version:

Chrome 76

Version of Leaflet (L.version):

Leaflet 1.5.1

Version of esri Leaflet (L.esri.VERSION):

esri Leaflet 2.3.0

Steps to reproduce the error:

Specific to private ArcGIS server

What happens is [X].

After adding a L.esri.FeatureLayer, Leaflet fails to draw the layer. After inspecting the network tab in developer tools, I noticed that the geometry is way off. After a bit of debugging, I realized that the request being sent to the service includes "outSr=4326". Changing it to "outSR=4326" corrects the issue.

According to the ArcGIS REST API documentation for Query (Feature Service/Layer) (https://developers.arcgis.com/rest/services-reference/query-feature-service-layer-.htm), the parameter should be "OutSR".

I was expecting [Y].

I would expect esri Leaflet to request the feature layer using the "OutSR" parameter instead of "OutSr".

I noticed that in esri Leaflet's Query.js task, (https://github.com/Esri/esri-leaflet/blob/1ec2167ed7ea13d67a8536bb62c49a04930a470e/src/Tasks/Query.js), the params object has "OutSr: 4326" hard-coded. Temporarily changing this to "OutSR" corrected the issue I was experiencing.

What surprised me is that it seems most other ArcGIS servers accept "OutSr" or "OutSR". In my case, the server only accepts "OutSR".

[jgravois]

a pull request with a fix would be welcome.

[agbq]

Sure thing.

[jwasilgeo]

Resolved in PR #1168 and approved by @gavinr. Thanks @agbq!