java - Server validation in other domain -


i need solution general problem have.

i have site domain called foo.com , cross domain called foo_goo.com

in foo.com there form several fields: username, firstname, lastname, email...

when user press submit button (in form) need make server validation on fields, server make validation in cross domain (foo_goo.com).

any solution problem? (ajax, json, servlet...)

what prefer why it?

i recommend php, proxy, there other solutions jsonp or feature in html5 might you: cross domain solutions full client

main options found interesting:

  • jsonp
  • php proxy
  • html5 window.postmessage

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