Question

> difference between keyboard backarrow and history.back<

Asked by: cmuir

Hi,

I am using "javascript:history.back()" to go back a page on my site - not revolutionary I know but have hit the situation where it doesn't do the same as presing the back arrow on my keyboard.

I have a simple frameset 'header' and below it the 'main' body the back arrow is in my header but is quite happy to move back pages if my 'main' frame has changed. That is until my 'main' frame goes to an Secure page (https: on a different server). Then it returns 'page
cannot be displayed' error message (as it tries to go back to my http server) but the back arrow on my keybaord works OK.

Anyone help me rectify this and/or explain the difference between the two operations?

Regards

Charlie

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Asked On
2001-11-20 at 11:33:00ID20237331
Tags

javascript

,

backarrow

,

between

,

difference

Topic

JavaScript

Participating Experts
2
Points
65
Comments
6

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Answers

 

by: davlun20080Posted on 2001-11-20 at 12:59:31ID: 6645841

I think this is correct, once the frame's source has moved to a different server, you are no longer able to access the history through scripting, it is the cross frame browser security that is preventing this, whereas the backspace, is the same as hitting the back button on the browser itself, since no script in a page is trying to access anything, history is not compromised so there is no problem.

davlun

 

by: cmuirPosted on 2001-11-21 at 01:41:35ID: 6647182

Is there a way of fully emulating the Back Button on the browser that would then allow me to cross the server barrier?

 

by: davlun20080Posted on 2001-11-21 at 09:59:12ID: 6648220

If I am correct in my thinking about the cross frame security, no there is not a way to do what you wish.  

You may try history.go(-1), it may produce different results.

davlun

 

by: cmuirPosted on 2001-11-22 at 03:20:57ID: 6649704

just for Reference history.go(-1) is no better

 

by: MoondancerPosted on 2002-03-16 at 17:52:06ID: 6872899

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by: cmuirPosted on 2002-03-18 at 06:27:15ID: 6876860

Thanks for helping davlun - had to hard code the back button in - guess there is no solution :o(

20120131-EE-VQP-002

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