diff --git a/from-a-cdn.html b/from-a-cdn.html
deleted file mode 100644
index 8235a5644..000000000
--- a/from-a-cdn.html
+++ /dev/null
@@ -1,41 +0,0 @@
-
-
-
-
-
- Using Solution.js from a CDN
-
-
- Open your console to see the demo.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/packages/common/README.md b/packages/common/README.md
index 579fc5e15..73e967c82 100644
--- a/packages/common/README.md
+++ b/packages/common/README.md
@@ -15,56 +15,6 @@
> Common helpers for [`@esri/solution-*`](https://github.com/Esri/solution.js) packages.
-### Example
-
-```js
-var fetch = require("node-fetch");
-var FormData = require("isomorphic-form-data");
-var Promise = require("promise");
-
-require("@esri/arcgis-rest-portal");
-require("@esri/arcgis-rest-request");
-require("@esri/arcgis-rest-service-admin");
-
-var solutionCommon = require("@esri/solution-common");
-
-var originalExtent = {
- xmin: -9821384,
- ymin: 5117339,
- xmax: -9797228,
- ymax: 5137789,
- spatialReference: { wkid: 102100 }
-};
-var desiredSpatialRef = { wkid: 4326 };
-
-solutionCommon.convertExtent(
- originalExtent,
- desiredSpatialRef,
- "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Utilities/Geometry/GeometryServer",
- {
- fetch: fetch
- }
-).then(
- response => {
- console.log("spatialReference: " + response.spatialReference.wkid);
- console.log("xmax: " + response.xmax);
- console.log("xmin: " + response.xmin);
- console.log("ymax: " + response.ymax);
- console.log("ymin: " + response.ymin);
- },
- response => console.error(response)
-);
-```
-Example is hosted in [RunKit](https://runkit.com/miketschudi/esri-solution-common/1.0.0); expected output:
-```
-Promise (resolved) undefined
-"spatialReference: 4326"
-"xmax: -88.0099965440373"
-"xmin: -88.22699358406922"
-"ymax: 41.84499732645768"
-"ymin: 41.70799917451703"
-```
-
### [API Reference](https://esri.github.io/solution.js/modules/common_src.html)
### Issues
diff --git a/packages/workflow/src/workflowHelpers.ts b/packages/workflow/src/workflowHelpers.ts
index c41584172..9beda9edf 100644
--- a/packages/workflow/src/workflowHelpers.ts
+++ b/packages/workflow/src/workflowHelpers.ts
@@ -179,7 +179,7 @@ export function _cacheLayerDetails(
srcId: string,
itemId: string,
): void {
- if (layers) {
+ if (layers && srcId !== "__proto__" && srcId !== "constructor" && srcId !== "prototype") {
layers.forEach((layer) => {
const fields = layer.fields.reduce((prev, cur) => {
prev[cur.name.toLowerCase()] = {