Ajax problem with rails 2.0.2 - frozen string?

I am deploying a new rails application on a shared host (hostingrails)
for the first time. My local app works great. However, Ajax requests
in the deployed application are generating the following error:

/!\ FAILSAFE /!\ Fri Feb 15 08:44:59 -0600 2008
Status: 500 Internal Server Error
can’t modify frozen string
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/request.rb:462:in gsub!' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/request.rb:462:inclean_up_ajax_request_body!’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/request.rb:380:in
parse_formatted_request_parameters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/cgi_process.rb:78:inrequest_parameters’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/request.rb:287:in parameters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/request.rb:22:inrequest_method’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/request.rb:35:in method' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/routing.rb:1483:inextract_request_environment’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/routing.rb:1424:in recognize' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:170:inhandle_request’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:126:indispatch_cgi’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in `dispatch’
dispatch.cgi:10

Any help here would be great!

This seems to be FastCGI specific. The problem is gone on Mongrel.

have the same problem on site5

I have the same issue on my ASO hosting. More and more I realize that
if your gonna host an RoR site, shared hosting is not the way to go.