Raster layer is not feature layer,
Raster layer don't have attribute table, only has pixle value for each pixle
Feature layer has attribute table, each geometry(feature) associate with a row in attribute table
sample 1
https://transparentgov.net:3200/googlemaps912/default?layer_id=0&layer=SilverRock_MasterPlan_29Nov2016_s200-images.jpg¢er_lat=33.6426918177004¢er_long=-116.26117323737817¢er_zoom=15&url=https%3A%2F%2Fgis.la-quinta.org%2Farcgis%2Frest%2Fservices%2FCommunity_and_economic%2FSilver_Rock_Master_Plan%2FMapServer&overlayType=overlayType_image&panto=0&overlayOpacity=7
https://transparentgov.net/json2tree/esri/server2/searchLayer.html?url=https%3A%2F%2Fgis.la-quinta.org%2Farcgis%2Frest%2Fservices&org=La+Quinta+CA&_center_lat=33.6634&_center_long=-116.31&_center_zoom=17&arcgis_online_token=&select_folder=63&select_layer=0&filter_by=silver
sample 2
https://transparentgov.net:3200/googlemaps917/default?layer_id=0&layer=La_Quinta_aerial_2013.tif¢er_lat=33.66058770031183¢er_long=-116.27192424581376¢er_zoom=13&url=https%3A%2F%2Fgis.la-quinta.org%2Farcgis%2Frest%2Fservices%2FAerial%2FLa_Quinta_aerial%2FMapServer&overlayType=overlayType_image&panto=0
https://transparentgov.net/json2tree/esri/server/folder.html?url=https%3A%2F%2Fgis.la-quinta.org%2Farcgis%2Frest%2Fservices&org=La+Quinta+CA&_center_lat=33.6634&_center_long=-116.31&_center_zoom=17&arcgis_online_token=&select_folder=87&select_layer=0