diff --git a/.playground/index.tsx b/.playground/index.tsx
index 84e78a0349..2511c4c008 100644
--- a/.playground/index.tsx
+++ b/.playground/index.tsx
@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import 'core-js';
+// import 'core-js';
 import React from 'react';
 import ReactDOM from 'react-dom';
 
diff --git a/browsers/browsers.test.ts b/browsers/browsers.test.ts
index 8369b2491d..17a57a24ad 100644
--- a/browsers/browsers.test.ts
+++ b/browsers/browsers.test.ts
@@ -56,10 +56,29 @@ describe('smoke tests', () => {
     }
     if (capabilities) {
       driver = await new webdriver.Builder().withCapabilities(capabilities).build();
+
+      await driver.executeScript(() => {
+        // @ts-ignore
+        window.browserErrors = [];
+
+        window.console.error = (...args: any[]) => {
+          // @ts-ignore
+          window.browserErrors.push(...args);
+        };
+      });
     }
   });
 
   afterAll(async() => {
+    const errors = await driver.executeScript(() =>
+      // @ts-ignore
+      JSON.stringify(window.browserErrors)
+      // if (entry.level.name === 'error') {
+      //   console.log('[%s] %s', entry.level.name, entry.message);
+      // }
+    );
+    console.log('ERRRORS CLIENT', JSON.stringify(errors));
+
     await driver.quit();
   });
 
diff --git a/src/components/chart.tsx b/src/components/chart.tsx
index 22548e06e3..5b518e830b 100644
--- a/src/components/chart.tsx
+++ b/src/components/chart.tsx
@@ -68,6 +68,9 @@ export class Chart extends React.Component<ChartProps, ChartState> {
     this.chartContainerRef = createRef();
     this.chartStageRef = createRef();
 
+    // eslint-disable-next-line no-console
+    console.error('this thing errored');
+
     const id = props.id ?? uuid.v4();
     const storeReducer = chartStoreReducer(id);
     const enhancers = typeof window !== 'undefined' && (window as any).__REDUX_DEVTOOLS_EXTENSION_COMPOSE__