Getting the more complex pages to work on IE6 is a complete pain in the backside but the modern browsers all behave in a similar (but not identical) fashion to each other. If something works in IE9 and Google Chrome it will probably work in Firefox, Safari and Opera too - which are the browsers used for testing Bonkers. So I can’t explain why a reader found that Bexley council’s web forms produce an error when not using Internet Explorer. I reproduced it very easily using Chrome.
Bexley council’s website is huge and no doubt difficult to maintain but presumably they employ professionals to do it. It really isn’t good enough.