Added source maps back after a long time it didn't work:

angular/angular-cli#9980

Author: HarelM

IsraelHiking.Web/angular.json

@@ -35,7 +35,7 @@
             "production": {
               "optimization": true,
               "outputHashing": "all",
-              "sourceMap": false,
+              "sourceMap": true,
               "extractCss": true,
               "namedChunks": false,
               "aot": true,