difference between html.erb and .erb

I spend few hours debugging a flash chart issue. At the end and after
a lot of trial and error, I switched my view name from dashboard.erb
to dashboard.html.erb and that resolved the problem. Any idea why? I
tried to google for the difference between the two but could not find
anything meaningful. I have a mix of views with only .erb and html.erb
in my app. Thanks for the insight.

Robert Walker wrote:

The old Rails views used the extension /rhtml (for Ruby HTML). In newer

Typo correction .rhtml not /rhtml