diff --git a/Makefile b/Makefile
index 8247ce0724..28d2f24ced 100644
--- a/Makefile
+++ b/Makefile
@@ -255,7 +255,7 @@ release-bugfix-travis: deploy-travis
 netlify-prod: clean docs-clean build docs-generate docs-production-build
 
 .PHONY: netlify-preview
-netlify-preview: clean docs-clean build docs-generate docs-preview-build
+netlify-preview: clean docs-clean build docs-live-blocks-install-deps docs-live-blocks-test docs-generate docs-preview-build
 
 ######################################################
 #
diff --git a/docs/website/scripts/live-blocks/package-lock.json b/docs/website/scripts/live-blocks/package-lock.json
index a97144d5bf..69c6316b94 100644
--- a/docs/website/scripts/live-blocks/package-lock.json
+++ b/docs/website/scripts/live-blocks/package-lock.json
@@ -921,9 +921,9 @@
       }
     },
     "acorn": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.2.1.tgz",
-      "integrity": "sha512-JD0xT5FCRDNyjDda3Lrg/IxFscp9q4tiYtxE1/nOzlKCk7hIRuYjhq1kCNkbPjMRMZuFq20HNQn1I9k8Oj0E+Q==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+      "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
       "dev": true
     },
     "alphanum-sort": {
@@ -3510,6 +3510,14 @@
         "@types/estree": "0.0.39",
         "@types/node": "^12.6.2",
         "acorn": "^6.2.0"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
+          "dev": true
+        }
       }
     },
     "rollup-plugin-babel": {
diff --git a/docs/website/scripts/live-blocks/package.json b/docs/website/scripts/live-blocks/package.json
index 89280db04d..d30e00a875 100644
--- a/docs/website/scripts/live-blocks/package.json
+++ b/docs/website/scripts/live-blocks/package.json
@@ -46,6 +46,7 @@
     "rollup-plugin-terser": "^5.1.1",
     "sinon": "^7.4.1",
     "sort-package-json": "^1.22.1",
-    "serialize-javascript": ">=2.1.1"
+    "serialize-javascript": ">=2.1.1",
+    "acorn": ">=6.4.1"
   }
 }
diff --git a/docs/website/scripts/live-blocks/src/helpers.js b/docs/website/scripts/live-blocks/src/helpers.js
index c9aa2040fa..9f39ad5044 100644
--- a/docs/website/scripts/live-blocks/src/helpers.js
+++ b/docs/website/scripts/live-blocks/src/helpers.js
@@ -80,7 +80,19 @@ export function getAllGroupModules(groups, groupName) {
   return out.reverse() // Correct the order
 }
 
-// Returns an object of the form {module: string, package: string[, input: value][, query: string][, included: map[filename]string}, throws an error with a human-readable message if the specified or any included groups don't have modules, the group's package cannot be found, or if the input cannot be parsed.
+// Returns an object of the form
+//
+// {
+//    module: string,
+//    package: string
+//    input: value
+//    query: string,
+//    included: map[filename]string
+// }
+//
+// Throws an error with a human-readable message if the specified or any
+// included groups don't have modules, the group's package cannot be found, or
+// if the input cannot be parsed.
 export function getGroupData(groups, groupName) {
   const queryBlock = getGroupField(groups, groupName, BLOCK_TYPES.QUERY)
   const inputBlock = getGroupField(groups, groupName, BLOCK_TYPES.INPUT)
diff --git a/docs/website/scripts/live-blocks/test/helpers.test.js b/docs/website/scripts/live-blocks/test/helpers.test.js
index 9e96ab22ac..13b28fb274 100644
--- a/docs/website/scripts/live-blocks/test/helpers.test.js
+++ b/docs/website/scripts/live-blocks/test/helpers.test.js
@@ -247,18 +247,7 @@ describe('getGroupData', () => {
       'a': {module: {get: () => 'package foo\na'}},
       'a/b/c': {module: {get: () => 'c'}, output: {tags: ['include(d)']}},
       'd': {module: {get: () => 'd'}}
-    }, 'a/b/c').included.d).to.equal('d')
-  })
-
-  it('doesn\'t mutate groups', () => {
-    const groups = {
-      'a': {input: {get: () => '{}'}, module: {get: () => 'package foo\na'}}, // Will error if gets from this parent
-      'a/b/c': {query: {get: () => 'foobar'}, module: {get: () => 'c'}}
-    }
-    const arg = Object.fromEntries(Object.entries(groups).map(([key, value]) => [key, Object.assign({}, value)])) // depth 2 object clone
-
-    getGroupData(arg, 'a/b/c/d')
-    expect(arg).to.deep.equal(groups)
+    }, 'a/b/c').included["d.rego"]).to.equal('d')
   })
 })