determine if request is xhr?

[bonyiii]

In rails 3.1.0.rc4

File actionpack/lib/action_dispatch/http/request.rb, line 148

reads

@env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i

but it should be something like this:

(@env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i).nil? ? false : true

[fxn]

The =~ operator returns a value whose boolean interpretation is true or false. That's all a predicate is required to do.

[bonyiii]

No it returns the position the first match which could be 0 and it will be evaluated false then.

[fxn]

You need to double-check your Ruby ;).