Proxy generator or file generator to retreive web pages?

[Davide]

Hi!...

i have a pipeline where i retreive a web page dinamically, and then i'll 
need to edit it:

                    <map:match pattern="body">
                                <map:act type="auth-protect">
                                        <map:parameter name="handler" 
value="navigation"/>
                                        <map:parameter name="use-request-parameters" 
value="true"/>
                                        <!-- generator... both wsproxy and normal file 
generator are possible -->
                                        <map:generate src="{request-param:link}"/> <!--type="proxy" 
label="xml"-->
                                        ...
                                        ...
                                </map:act>
                        </map:match>
I observed that i can use both normal file generator and proxy generator, 
with apparently no difference, both returns to me the requested xhtml page;
So, I would like to know if there are important differences, and when to 
use file gen and when proxy gen

Best Regards, Davide