Add package.json to exports so it can be resolved

CHANGES.md

@@ -11,7 +11,8 @@
 - Fixed several artifcats on mobile devices caused by using insufficient precision. [#9064](https://github.com/CesiumGS/cesium/pull/9064)
 - Fixed handling of `data:` scheme for the Cesium ion logo URL. [#9085](https://github.com/CesiumGS/cesium/pull/9085)
 - Fixed an issue where the boundary rectangles in `TileAvailability` are not sorted correctly, causing terrain to sometimes fail to achieve its maximum detail. [#9098](https://github.com/CesiumGS/cesium/pull/9098)
-- Fixed an issue where a request for an availability tile of the reference layer is delayed because the throttle option is on. [##9099](https://github.com/CesiumGS/cesium/pull/9099)
+- Fixed an issue where a request for an availability tile of the reference layer is delayed because the throttle option is on. [#9099](https://github.com/CesiumGS/cesium/pull/9099)
+- Fixed an issue where Node.js tooling could not resolve package.json. [#9105](https://github.com/CesiumGS/cesium/pull/9105)
 
 ### 1.72 - 2020-08-03
 

package.json

@@ -33,8 +33,11 @@
   "module": "./Source/Cesium.js",
   "types": "./Source/Cesium.d.ts",
   "exports": {
-    "require": "./index.cjs",
-    "import": "./Source/Cesium.js"
+    "./package.json": "./package.json",
+    ".": {
+      "require": "./index.cjs",
+      "import": "./Source/Cesium.js"
+    }
   },
   "type": "module",
   "devDependencies": {