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I'm working on a demo App using Extjs and Spring Security 2.0.4
It's one page one application,when my app load,I query server for login status if not login render a login window else load main...

as a Chinese,I cant visit both of blogspot and twitter !!:mad:

can any guys told me what and why ?

change AbstractProcessingFilter by removing redirect code
and add your code to send json then use it as the customer-filter "AuthencicationProcessingFilter" you also need to implement few abstract...

how to handle this ？I am new to Spring Security .

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sorry for my poor english

additional words：
If you try to send any data beforen response.sendRedirect();
you will get exception

Thanks!
I have downloaded your sample code.It works,but exception also been thrown.
about Ajax login and Spring security:
I think the main problem is that XHR is different from...