Application error: a client-side exception has occurred while loading www.yahoo.com (see the browser console for more information).

While browsing Safari I looked up a news story on Yahoo.com and for the following error message, "Application error: a client-side exception has occurred while loading www.yahoo.com (see the browser console for more information)." At the same time I noticed an extension flashed up with a permission message, which I validated.

Performed following trouble-shooting:

1) Removed ad blocking from router - no affect

2) Checked other news sites - they worked ok, but still no access to yahoo news story

3) Re-started, no effect. Shut down and re-started, no effect

4) Opened browser console - yikes, beyond my ken.

5) Noticed that extension was not active while in private browsing

6) Browsed in private - Eureka!

Perhaps installing the extension may be another solution..