Loading html email template don't work

I can’t load the html template for sending invoices by e-mail.

At first it worked fine in mozilla firefox

It started to fail first with firefox. Then with google chrome, and finally only works with Internet Explorer, at the moment

Please, add that the template also carries the email subject. And add a “Save” button, to save the changes made to the current template.

Thanks

Strange, I just checked, in your system all looks fine.

May be some cache or other local issue.

Can you check on other PC, clear cache, etc …

I have tried to remove Firefox cache and now it works

Thanks