Re: Can anyone help with solving the BACK button problem, in th e browser?
Hi Smith
Could u please send the javascript code related to back button problem.
Thanks
Eda
Spencer Smith [EMAIL PROTECTED] wrote:
That won't work. I solved the problem using javascript. Javascript doesn't cache like JSP pages does, so you can get around this problem using javascript.
If you want, I can send you the code I use.
- Original Message -
From: Thane Eisener
To: '[EMAIL PROTECTED]'
Sent: Thursday, June 07, 2001 10:12 AM
Subject: RE: Can anyone help with solving the "BACK" button problem, in th e browser?
Oops, I guess I should test before I post. It looks like newer browsers don't support this as a META tag only as a header.
I added the following to one of my action classes and the perform() method was called when I pressed 'Back':
response.addHeader("Pragma","no-cache"); response.addHeader("Cache-control","no-cache");
Hope it helps, Thane
-Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the "BACK" button problem, in th e browser?
Thane ,
I am using: META http-equiv="Expires" content="now" in my header, and my action is not re-executed when I use the browser back button. Is there another option I should be using?
thanks, Pete
Thane Eisener wrote:
I seem to recall a META tag called something like pragma-no-cache that you can embed in your page which will force the page to reload (not just display a snapshot). This should enable handling the situation in scriptlets or your action class. -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the "BACK" button problem, in the browser? Depending on which browser you use, and the data on the page, the back button may cause (or ask) the page to reload. However, some browsers (like IE) only display a snapshot of what the last page rendered to. Therefore, you cannot use scriptlets or the action class. However, you are able to kick-off javascript. If you can gaurantee that your users will have javascript enabled, you can write a simple test to see if this page was already displayed to the user. You could check a flag (hidden field) when the page loads. If the flag is true, then use the javascript to reload to your desired page. HTH, Pete "Dudley Butt@i-Commerce" wrote:Please help, When the user pushes the back button, I want the page to redirect or refresh to a different page, please, any ideas? Thanx guys and gals Dudley Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail - only $35
a year!http://personal.mail.yahoo.com/
RE: Can anyone help with solving the BACK button problem, in th e browser?
isn't
the init pram of the Action servlet allow you to set no-cache on every out-going
response?
like
this:
init-param
param-namenocache/param-name
param-valuetrue/param-value
/init-param
-Original Message-From: Eda Srinivasareddy Eda
[mailto:[EMAIL PROTECTED]]Sent: Monday, June 25, 2001 5:09
AMTo: [EMAIL PROTECTED]Subject: Re: Can
anyone help with solving the "BACK" button problem, in th e
browser?
Hi Smith
Could u please send the javascript code related to back button problem.
Thanks
Eda
Spencer Smith [EMAIL PROTECTED] wrote:
That won't work. I solved the problem
using javascript. Javascript doesn't cache like JSP pages does, so you
can get around this problem using javascript.
If you want, I can send you the code I
use.
- Original Message -
From:
Thane Eisener
To: '[EMAIL PROTECTED]'
Sent: Thursday, June 07, 2001 10:12
AM
Subject: RE: Can anyone help with
solving the "BACK" button problem, in th e browser?
Oops, I guess I should test before I post. It looks like
newer browsers don't support this as a META tag only as a
header.
I added the following to one of my action classes and the
perform() method was called when I pressed 'Back':
response.addHeader("Pragma","no-cache"); response.addHeader("Cache-control","no-cache");
Hope it helps, Thane
-Original Message- From:
Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject:
Re: Can anyone help with solving the "BACK" button problem, in
th e browser?
Thane ,
I am using:
META http-equiv="Expires" content="now" in
my header, and my action is not re-executed when I use the browser
back button. Is there another
option I should be using?
thanks,
Pete
Thane Eisener wrote:
I seem to recall a META tag called something like
pragma-no-cache that you can embed in your
page which will force the page to reload (not
just display a snapshot). This should enable handling the situation
in scriptlets or your action class.
-Original
Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 9:52 AM
To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the "BACK" button
problem, in the
browser?
Dependin! g on which browser you use, and the data on the page, the
back button may
cause (or ask) the page to reload. However,
some browsers (like IE) only display a snapshot of what the
last page rendered
to. Therefore, you cannot use scriptlets or
the action class. However, you are
able to kick-off javascript. If you can gaurantee that your users will have javascript
enabled, you can write a simple test to see if this page was already displayed to the
user. You could
check a flag (hidden field) when the page loads. If the flag is
true, then use !
; the javascript to reload to your desired page. HTH, Pete "Dudley Butt@i-Commerce"
wrote:
Please help, When the user pushes the back button, I want the page to
redirect or refresh to a different page, please, any ideas? Thanx guys and
gals Dudley
Do You Yahoo!?Get personalized email addresses from Yahoo! Mail -
only $35 a year!http://personal.mail.yahoo.com/
RE: Can anyone help with solving the BACK button problem, in th e browser?
thanx, appreciate the suggestion -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Sunday, June 10, 2001 1:47 AM To: '[EMAIL PROTECTED]' Subject: RE: Can anyone help with solving the BACK button problem, in th e browser? On Fri, 8 Jun 2001, Dudley Butt@i-Commerce wrote: yes, but this is a form that is being filled in like a wizard type of thing, i need the form to be session any ideas, for an alternative? The alternative approach is to have *all* of the input fields for the entire wizard included on every page -- but the ones you are not displaying on the current page would be created with html:hidden instead of html:text or whatever. Craig
RE: Can anyone help with solving the BACK button problem, in th e browser?
On Fri, 8 Jun 2001, Dudley Butt@i-Commerce wrote: yes, but this is a form that is being filled in like a wizard type of thing, i need the form to be session any ideas, for an alternative? The alternative approach is to have *all* of the input fields for the entire wizard included on every page -- but the ones you are not displaying on the current page would be created with html:hidden instead of html:text or whatever. Craig
RE: Can anyone help with solving the BACK button problem, in th e browser?
Title: RE: Can anyone help with solving the "BACK" button problem, in th e browser?
well,
this will blow all your socks off.
I got
something to work, and remaining in line with my "REDUCE THE JAVASCRIPT"
policy
here
is what i did...
I just
plugged some code into my actionhandler to evaluate a state property on my
actionform. If it was a certain state i either perform usual processing or just
by pass the processing and show the JSP which gets rebuilt
anyways...
great!!
public ActionHandlerResponse
executeAction(ActionMapping mapping, ActionForm form, HttpServletRequest
request){
System.out.println("In " +
this.getClass()); actionFormObject
= (Vat201ReturnActionForm)form;
aRequest = request; ActionErrors
errors = null; if
(actionFormObject.getRefreshOption()){ // IF THIS IS TRUE DONT ALLOW
ANY PROCESSING JUST REBUILD JSP
//
THIS boolean GETS SETAFTERFIRSTTIME PROCESSING
return new
ActionHandlerResponse(errors,mapping.findForward("success"));
} errors =
doFieldValidation(); if (errors !=
null) {
actionFormObject.setAction("Edit");
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
} else
{ errors =
doReturnUpdate();
if (errors == null){
return new
ActionHandlerResponse(errors,mapping.findForward("success"));
} else
{
actionFormObject.setAction("Edit");
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
} //return new
ActionHandlerResponse(errors,
mapping.findForward("mainMenu"));
}
-Original Message-From: Spencer Smith
[mailto:[EMAIL PROTECTED]]Sent: Thursday, June 07, 2001 7:44
PMTo: [EMAIL PROTECTED]Subject: Re: Can
anyone help with solving the "BACK" button problem, in th e
browser?
That won't work. I solved the problem using
javascript. Javascript doesn't cache like JSP pages does, so you can get
around this problem using javascript.
If you want, I can send you the code I
use.
- Original Message -
From:
Thane Eisener
To: '[EMAIL PROTECTED]'
Sent: Thursday, June 07, 2001 10:12
AM
Subject: RE: Can anyone help with
solving the "BACK" button problem, in th e browser?
Oops, I guess I should test before I post. It looks like
newer browsers don't support this as a META tag only as a header.
I added the following to one of my action classes and the
perform() method was called when I pressed 'Back':
response.addHeader("Pragma","no-cache"); response.addHeader("Cache-control","no-cache");
Hope it helps, Thane
-Original Message- From:
Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject:
Re: Can anyone help with solving the "BACK" button problem, in
th e browser?
Thane ,
I am using:
META http-equiv="Expires" content="now" in
my header, and my action is not re-executed when I use the browser
back button. Is there another
option I should be using?
thanks,
Pete
Thane Eisener wrote:
I seem to recall a META tag called something like
pragma-no-cache that you can embed in your page
which will force the page to reload (not just
display a snapshot). This should enable handling the situation in
scriptlets or your action class. -Original Message-
From: Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED]
Subject: Re: Can anyone help with solving the "BACK" button problem,
in the browser?
Depending on which
browser you use, and the data on the page, the back button may cause (or ask) the page
to reload. However, some browsers (like IE)
only display a snapshot of what the last
page rendered to.
Therefore, you cannot use scriptlets or the action class.
However, you are able to kick-off javascript. If you can
gaurantee that your users will have javascript enabled, you can write a simple test to see if
this page was already displayed to the user.
You could check a flag (hidden field) when the
page loads. If the flag is true, then
use the javascript to reload to your desired
page. HTH,
Pete "Dudley Butt@i-Commerce"
wrote:Please
help,
When the user pushes the back button, I want the page to redirect or
refresh to a
different page, please, any ideas?
Thanx guys and gals
Dudley
RE: Can anyone help with solving the BACK button problem, in th e browser?
Title: RE: Can anyone help with solving the "BACK" button problem, in th e browser?
the
solution i posted means that the user can push the BACK button, but we have full
control via the actionhandler, as to how much processing we will allow the user
to perform, simply just by evaluating some previously set
formproperties
[Dudley Butt@i-Commerce]
-Original
Message-From: Spencer Smith
[mailto:[EMAIL PROTECTED]]Sent: Thursday, June 07, 2001 7:44
PMTo: [EMAIL PROTECTED]Subject: Re: Can
anyone help with solving the "BACK" button problem, in th e
browser?
That won't work. I solved the problem using
javascript. Javascript doesn't cache like JSP pages does, so you can get
around this problem using javascript.
If you want, I can send you the code I
use.
- Original Message -
From:
Thane Eisener
To: '[EMAIL PROTECTED]'
Sent: Thursday, June 07, 2001 10:12
AM
Subject: RE: Can anyone help with
solving the "BACK" button problem, in th e browser?
Oops, I guess I should test before I post. It looks like
newer browsers don't support this as a META tag only as a header.
I added the following to one of my action classes and the
perform() method was called when I pressed 'Back':
response.addHeader("Pragma","no-cache"); response.addHeader("Cache-control","no-cache");
Hope it helps, Thane
-Original Message- From:
Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject:
Re: Can anyone help with solving the "BACK" button problem, in
th e browser?
Thane ,
I am using:
META http-equiv="Expires" content="now" in
my header, and my action is not re-executed when I use the browser
back button. Is there another
option I should be using?
thanks,
Pete
Thane Eisener wrote:
I seem to recall a META tag called something like
pragma-no-cache that you can embed in your page
which will force the page to reload (not just
display a snapshot). This should enable handling the situation in
scriptlets or your action class. -Original Message-
From: Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED]
Subject: Re: Can anyone help with solving the "BACK" button problem,
in the browser?
Depending on which
browser you use, and the data on the page, the back button may cause (or ask) the page
to reload. However, some browsers (like IE)
only display a snapshot of what the last
page rendered to.
Therefore, you cannot use scriptlets or the action class.
However, you are able to kick-off javascript. If you can
gaurantee that your users will have javascript enabled, you can write a simple test to see if
this page was already displayed to the user.
You could check a flag (hidden field) when the
page loads. If the flag is true, then
use the javascript to reload to your desired
page. HTH,
Pete "Dudley Butt@i-Commerce"
wrote:Please
help,
When the user pushes the back button, I want the page to redirect or
refresh to a
different page, please, any ideas?
Thanx guys and gals
Dudley
Re: Can anyone help with solving the BACK button problem, in th e browser?
Just a comment... Looks like your method of checking the RefreshOption
property will only work if the scope of the ActionForm is session.
That's ok if one doesn't mind the use of resources.
- Original Message -
From: Dudley Butt@i-Commerce [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 08, 2001 5:34 AM
Subject: RE: Can anyone help with solving the BACK button problem, in
th e browser?
well, this will blow all your socks off.
I got something to work, and remaining in line with my REDUCE THE
JAVASCRIPT policy
here is what i did...
I just plugged some code into my actionhandler to evaluate a state
property
on my actionform. If it was a certain state i either perform usual
processing or just by pass the processing and show the JSP which gets
rebuilt anyways...
great!!
public ActionHandlerResponse executeAction(ActionMapping mapping,
ActionForm form, HttpServletRequest request){
System.out.println(In + this.getClass());
actionFormObject = (Vat201ReturnActionForm)form;
aRequest = request;
ActionErrors errors = null;
if (actionFormObject.getRefreshOption()){ // IF THIS IS TRUE
DONT
ALLOW ANY PROCESSING JUST REBUILD JSP
// THIS boolean GETS SET AFTER FIRST TIME PROCESSING
return new
ActionHandlerResponse(errors,mapping.findForward(success));
}
errors = doFieldValidation();
if (errors != null) {
actionFormObject.setAction(Edit);
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
else {
errors = doReturnUpdate();
if (errors == null){
return new
ActionHandlerResponse(errors,mapping.findForward(success));
}
else {
actionFormObject.setAction(Edit);
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
}
//return new ActionHandlerResponse(errors,
mapping.findForward(mainMenu));
}
Re: Can anyone help with solving the BACK button problem, in th e browser?
Another approach I would recommend to solve this problem (haven't tried it
though), would be to check the request referer. If it is an empty string
then the user either clicked refresh or they typed in the URL into the
address field on their browser.
- Original Message -
From: William Jaynes [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 08, 2001 7:40 AM
Subject: Re: Can anyone help with solving the BACK button problem, in th e
browser?
Just a comment... Looks like your method of checking the RefreshOption
property will only work if the scope of the ActionForm is session.
That's ok if one doesn't mind the use of resources.
- Original Message -
From: Dudley Butt@i-Commerce [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 08, 2001 5:34 AM
Subject: RE: Can anyone help with solving the BACK button problem, in
th e browser?
well, this will blow all your socks off.
I got something to work, and remaining in line with my REDUCE THE
JAVASCRIPT policy
here is what i did...
I just plugged some code into my actionhandler to evaluate a state
property
on my actionform. If it was a certain state i either perform usual
processing or just by pass the processing and show the JSP which gets
rebuilt anyways...
great!!
public ActionHandlerResponse executeAction(ActionMapping mapping,
ActionForm form, HttpServletRequest request){
System.out.println(In + this.getClass());
actionFormObject = (Vat201ReturnActionForm)form;
aRequest = request;
ActionErrors errors = null;
if (actionFormObject.getRefreshOption()){ // IF THIS IS TRUE
DONT
ALLOW ANY PROCESSING JUST REBUILD JSP
// THIS boolean GETS SET AFTER FIRST TIME PROCESSING
return new
ActionHandlerResponse(errors,mapping.findForward(success));
}
errors = doFieldValidation();
if (errors != null) {
actionFormObject.setAction(Edit);
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
else {
errors = doReturnUpdate();
if (errors == null){
return new
ActionHandlerResponse(errors,mapping.findForward(success));
}
else {
actionFormObject.setAction(Edit);
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
}
file://return new ActionHandlerResponse(errors,
mapping.findForward(mainMenu));
}
RE: Can anyone help with solving the BACK button problem, in th e browser?
yes, but this is a form that is being filled in like a wizard type of thing,
i need the form to be session
any ideas, for an alternative?
-Original Message-
From: William Jaynes [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 08, 2001 1:40 PM
To: [EMAIL PROTECTED]
Subject: Re: Can anyone help with solving the BACK button problem, in
th e browser?
Just a comment... Looks like your method of checking the RefreshOption
property will only work if the scope of the ActionForm is session.
That's ok if one doesn't mind the use of resources.
- Original Message -
From: Dudley Butt@i-Commerce [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 08, 2001 5:34 AM
Subject: RE: Can anyone help with solving the BACK button problem, in
th e browser?
well, this will blow all your socks off.
I got something to work, and remaining in line with my REDUCE THE
JAVASCRIPT policy
here is what i did...
I just plugged some code into my actionhandler to evaluate a state
property
on my actionform. If it was a certain state i either perform usual
processing or just by pass the processing and show the JSP which gets
rebuilt anyways...
great!!
public ActionHandlerResponse executeAction(ActionMapping mapping,
ActionForm form, HttpServletRequest request){
System.out.println(In + this.getClass());
actionFormObject = (Vat201ReturnActionForm)form;
aRequest = request;
ActionErrors errors = null;
if (actionFormObject.getRefreshOption()){ // IF THIS IS TRUE
DONT
ALLOW ANY PROCESSING JUST REBUILD JSP
// THIS boolean GETS SET AFTER FIRST TIME PROCESSING
return new
ActionHandlerResponse(errors,mapping.findForward(success));
}
errors = doFieldValidation();
if (errors != null) {
actionFormObject.setAction(Edit);
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
else {
errors = doReturnUpdate();
if (errors == null){
return new
ActionHandlerResponse(errors,mapping.findForward(success));
}
else {
actionFormObject.setAction(Edit);
return new ActionHandlerResponse(errors, new
ActionForward(mapping.getInput()));
}
}
//return new ActionHandlerResponse(errors,
mapping.findForward(mainMenu));
}
RE: Can anyone help with solving the BACK button problem, in th e browser?
Title: RE: Can anyone help with solving the BACK button problem, in the browser? I seem to recall a META tag called something like pragma-no-cache that you can embed in your page which will force the page to reload (not just display a snapshot). This should enable handling the situation in scriptlets or your action class. -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in the browser? Depending on which browser you use, and the data on the page, the back button may cause (or ask) the page to reload. However, some browsers (like IE) only display a snapshot of what the last page rendered to. Therefore, you cannot use scriptlets or the action class. However, you are able to kick-off javascript. If you can gaurantee that your users will have javascript enabled, you can write a simple test to see if this page was already displayed to the user. You could check a flag (hidden field) when the page loads. If the flag is true, then use the javascript to reload to your desired page. HTH, Pete Dudley Butt@i-Commerce wrote: Please help, When the user pushes the back button, I want the page to redirect or refresh to a different page, please, any ideas? Thanx guys and gals Dudley
RE: Can anyone help with solving the BACK button problem, in th e browser?
Title: RE: Can anyone help with solving the BACK button problem, in th e browser? Try putting both of the following in the HEAD element of your page. Please let us know if it works. META NAME=Pragma CONTENT=no-cache META NAME=Cache-Control CONTENT=no-cache From the HTTP1.1 spec: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.32 14.32 Pragma The Pragma general-header field is used to include implementation- specific directives that might apply to any recipient along the request/response chain. All pragma directives specify optional behavior from the viewpoint of the protocol; however, some systems MAY require that behavior be consistent with the directives. Pragma = Pragma : 1#pragma-directive pragma-directive = no-cache | extension-pragma extension-pragma = token [ = ( token | quoted-string ) ] When the no-cache directive is present in a request message, an application SHOULD forward the request toward the origin server even if it has a cached copy of what is being requested. This pragma directive has the same semantics as the no-cache cache-directive (see section 14.9) and is defined here for backward compatibility with HTTP/1.0. Clients SHOULD include both header fields when a no-cache request is sent to a server not known to be HTTP/1.1 compliant. Pragma directives MUST be passed through by a proxy or gateway application, regardless of their significance to that application, since the directives might be applicable to all recipients along the request/response chain. It is not possible to specify a pragma for a specific recipient; however, any pragma directive not relevant to a recipient SHOULD be ignored by that recipient. HTTP/1.1 caches SHOULD treat Pragma: no-cache as if the client had sent Cache-Control: no-cache. No new Pragma directives will be defined in HTTP. Note: because the meaning of Pragma: no-cache as a response header field is not actually specified, it does not provide a reliable replacement for Cache-Control: no-cache in a response -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in th e browser? Thane , I am using: META http-equiv=Expires content=now in my header, and my action is not re-executed when I use the browser back button. Is there another option I should be using? thanks, Pete Thane Eisener wrote: I seem to recall a META tag called something like pragma-no-cache that you can embed in your page which will force the page to reload (not just display a snapshot). This should enable handling the situation in scriptlets or your action class. -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in the browser? Depending on which browser you use, and the data on the page, the back button may cause (or ask) the page to reload. However, some browsers (like IE) only display a snapshot of what the last page rendered to. Therefore, you cannot use scriptlets or the action class. However, you are able to kick-off javascript. If you can gaurantee that your users will have javascript enabled, you can write a simple test to see if this page was already displayed to the user. You could check a flag (hidden field) when the page loads. If the flag is true, then use the javascript to reload to your desired page. HTH, Pete Dudley Butt@i-Commerce wrote: Please help, When the user pushes the back button, I want the page to redirect or refresh to a different page, please, any ideas? Thanx guys and gals Dudley
RE: Can anyone help with solving the BACK button problem, in th e browser?
Title: RE: Can anyone help with solving the BACK button problem, in th e browser? Oops, I guess I should test before I post. It looks like newer browsers don't support this as a META tag only as a header. I added the following to one of my action classes and the perform() method was called when I pressed 'Back': response.addHeader(Pragma,no-cache); response.addHeader(Cache-control,no-cache); Hope it helps, Thane -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in th e browser? Thane , I am using: META http-equiv=Expires content=now in my header, and my action is not re-executed when I use the browser back button. Is there another option I should be using? thanks, Pete Thane Eisener wrote: I seem to recall a META tag called something like pragma-no-cache that you can embed in your page which will force the page to reload (not just display a snapshot). This should enable handling the situation in scriptlets or your action class. -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in the browser? Depending on which browser you use, and the data on the page, the back button may cause (or ask) the page to reload. However, some browsers (like IE) only display a snapshot of what the last page rendered to. Therefore, you cannot use scriptlets or the action class. However, you are able to kick-off javascript. If you can gaurantee that your users will have javascript enabled, you can write a simple test to see if this page was already displayed to the user. You could check a flag (hidden field) when the page loads. If the flag is true, then use the javascript to reload to your desired page. HTH, Pete Dudley Butt@i-Commerce wrote: Please help, When the user pushes the back button, I want the page to redirect or refresh to a different page, please, any ideas? Thanx guys and gals Dudley
Re: Can anyone help with solving the BACK button problem, in th e browser?
Looks like you can also set the Servlet init param nocache to true, and struts will automatically set the response headers for you. Thanks, Pete Thane Eisener wrote: Oops, I guess I should test before I post. It looks like newer browsers don't support this as a META tag only as a header. I added the following to one of my action classes and the perform() method was called when I pressed 'Back': response.addHeader(Pragma,no-cache); response.addHeader(Cache-control,no-cache); Hope it helps, Thane -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in th e browser? Thane , I am using: META http-equiv=Expires content=now in my header, and my action is not re-executed when I use the browser back button. Is there another option I should be using? thanks, Pete Thane Eisener wrote: I seem to recall a META tag called something like pragma-no-cache that you can embed in your page which will force the page to reload (not just display a snapshot). This should enable handling the situation in scriptlets or your action class. -Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED] Subject: Re: Can anyone help with solving the BACK button problem, in the browser? Depending on which browser you use, and the data on the page, the back button may cause (or ask) the page to reload. However, some browsers (like IE) only display a snapshot of what the last page rendered to. Therefore, you cannot use scriptlets or the action class. However, you are able to kick-off javascript. If you can gaurantee that your users will have javascript enabled, you can write a simple test to see if this page was already displayed to the user. You could check a flag (hidden field) when the page loads. If the flag is true, then use the javascript to reload to your desired page. HTH, Pete Dudley Butt@i-Commerce wrote: Please help, When the user pushes the back button, I want the page to redirect or refresh to a different page, please, any ideas? Thanx guys and gals Dudley
Re: Can anyone help with solving the BACK button problem, in th e browser?
Title: RE: Can anyone help with solving the "BACK" button problem, in th e browser?
That won't work. I solved the problem using
javascript. Javascript doesn't cache like JSP pages does, so you can get
around this problem using javascript.
If you want, I can send you the code I
use.
- Original Message -
From:
Thane Eisener
To: '[EMAIL PROTECTED]'
Sent: Thursday, June 07, 2001 10:12
AM
Subject: RE: Can anyone help with solving
the "BACK" button problem, in th e browser?
Oops, I guess I should test before I post. It looks like newer
browsers don't support this as a META tag only as a header.
I added the following to one of my action classes and the
perform() method was called when I pressed 'Back':
response.addHeader("Pragma","no-cache"); response.addHeader("Cache-control","no-cache");
Hope it helps, Thane
-Original Message- From: Peter
Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 11:35 AM To: [EMAIL PROTECTED] Subject: Re:
Can anyone help with solving the "BACK" button problem, in th e browser?
Thane ,
I am using:
META http-equiv="Expires" content="now" in my
header, and my action is not re-executed when I use the browser
back button. Is there another option
I should be using?
thanks, Pete
Thane Eisener wrote:
I seem to recall a META tag called something like pragma-no-cache that
you can embed in your page which will force the page to
reload (not just display a snapshot). This should
enable handling the situation in scriptlets or
your action class.
-Original Message- From: Peter Alfors [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 9:52 AM To: [EMAIL PROTECTED]
Subject: Re: Can anyone help with solving the "BACK" button problem,
in the browser?
Depending on which browser
you use, and the data on the page, the back
button may cause (or ask) the page to
reload. However, some browsers (like IE) only
display a snapshot of what the last page
rendered to. Therefore, you
cannot use scriptlets or the action class. However, you are able to kick-off
javascript. If you can gaurantee that your users
will have javascript enabled, you can
write a simple test to see if this page was
already displayed to the user. You could
check a flag (hidden field) when the page loads.
If the flag is true, then use the javascript to reload to your desired page. HTH, Pete
"Dudley Butt@i-Commerce" wrote:Please help, When the user pushes the
back button, I want the page to redirect or
refresh to a different page, please, any
ideas?
Thanx guys and gals Dudley
