diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 7252781089..a1cfa639b6 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -43,20 +43,17 @@ jobs:
       - name: Test embedded lgv
         run: |
           yarn
-          yarn build
-          yarn test:e2e
+          yarn e2e
         working-directory: component_tests/lgv
       - name: Test embedded cgv
         run: |
           yarn
-          yarn build
-          yarn test:e2e
+          yarn e2e
         working-directory: component_tests/cgv
       - name: Test embedded react-app
         run: |
           yarn
-          yarn build
-          yarn test:e2e
+          yarn e2e
         working-directory: component_tests/react-app
 
   buildjbrowseweb:
diff --git a/component_tests/cgv/cypress/e2e/basic.cy.ts b/component_tests/cgv/cypress/e2e/basic.cy.ts
index b16c88cf4d..6bfedc44d5 100644
--- a/component_tests/cgv/cypress/e2e/basic.cy.ts
+++ b/component_tests/cgv/cypress/e2e/basic.cy.ts
@@ -2,6 +2,6 @@ describe('JBrowse embedded circular view', () => {
   it('track loads', () => {
     cy.visit('/')
 
-    cy.findByTestId('chord-1148282975-vcf-63189', { timeout: 30000 })
+    cy.findByTestId('chord--470870972-vcf-62853', { timeout: 30000 })
   })
 })
diff --git a/component_tests/cgv/package.json b/component_tests/cgv/package.json
index 85e97b7f70..83b6ac9332 100644
--- a/component_tests/cgv/package.json
+++ b/component_tests/cgv/package.json
@@ -52,7 +52,8 @@
     "build": "react-scripts build",
     "test": "react-scripts test",
     "eject": "react-scripts eject",
-    "test:e2e": "start-test 'serve --listen 5000 build/' 5000 'cypress run --headless --browser chrome'"
+    "pree2e": "yarn build",
+    "e2e": "start-test 'serve --listen 5000 build/' 5000 'cypress run --headless --browser chrome'"
   },
   "eslintConfig": {
     "extends": [
@@ -72,5 +73,8 @@
       "last 1 safari version"
     ]
   },
-  "homepage": "."
+  "homepage": ".",
+  "devDependencies": {
+    "@babel/plugin-proposal-private-property-in-object": "^7.21.11"
+  }
 }
diff --git a/component_tests/lgv/package.json b/component_tests/lgv/package.json
index a0a7c3f5b5..61134e472e 100644
--- a/component_tests/lgv/package.json
+++ b/component_tests/lgv/package.json
@@ -51,7 +51,8 @@
     "build": "craco build",
     "test": "craco test",
     "eject": "craco eject",
-    "test:e2e": "start-test 'serve --listen 5000 build/' 5000 'cypress run --headless --browser chrome'"
+    "pree2e": "yarn build",
+    "e2e": "start-test 'serve --listen 5000 build/' 5000 'cypress run --headless --browser chrome'"
   },
   "eslintConfig": {
     "extends": [
@@ -71,5 +72,8 @@
       "last 1 safari version"
     ]
   },
-  "homepage": "."
+  "homepage": ".",
+  "devDependencies": {
+    "@babel/plugin-proposal-private-property-in-object": "^7.21.11"
+  }
 }
diff --git a/component_tests/react-app/package.json b/component_tests/react-app/package.json
index c3f6ebef4f..3b6565950b 100644
--- a/component_tests/react-app/package.json
+++ b/component_tests/react-app/package.json
@@ -64,7 +64,8 @@
     "build": "craco build",
     "test": "craco test",
     "eject": "craco eject",
-    "test:e2e": "start-test 'serve --listen 5000 build/' 5000 'cypress run --headless --browser chrome'"
+    "pree2e": "yarn build",
+    "e2e": "start-test 'serve --listen 5000 build/' 5000 'cypress run --headless --browser chrome'"
   },
   "eslintConfig": {
     "extends": [
@@ -84,5 +85,8 @@
       "last 1 safari version"
     ]
   },
-  "homepage": "."
+  "homepage": ".",
+  "devDependencies": {
+    "@babel/plugin-proposal-private-property-in-object": "^7.21.11"
+  }
 }