Users on one of my domains are also receiving this same error when using webmail. I submitted a ticket about a week ago but it’s still an issue. My users are also using Chrome. I may have them try Firefox to see if that fixes it.
By the way, it would be great if Dreamhost allowed us to reply to our trouble tickets directly from the control panel and not have us go through our emails to find the correct ticket.
UPDATE: Experiencing the same problem in Firefox.