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Re: Mystery (DOM change when JavaScript is disabled)

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  Re: Mystery (DOM change when JavaScript is disabled) Andrew Poulos <ap_prog@hotmail.com> - 2021-09-21 09:17 +1000

#40399 — Re: Mystery (DOM change when JavaScript is disabled)

On 21/09/2021 8:51 am, Stefan Ram wrote:
>    A web page has a link that is shown (in the status bar when
>    the mouse is positioned over it) as, e.g.,
> 
> http://www.example.com/
> 
>    . When one clicks on it (even with the /right/ mouse bottom),
>    it is being changed into something like
> 
> http://www.badcompany.com/redirect?uri=http%3A%2F%2Fwww.example.com%2F
> 
>    . I have looked at the DOM before the click and then again after
>    the click and it seems that the DOM is being changed from
> 
> ... href="http://www.example.com/" ...
> 
>    into
> 
> ... href="http://www.badcompany.com/redirect?uri=http%3A%2F...
> 
>    . Ok, this is annoying. I assumed that the click is being intercepted
>    with JavaScript and then the href attribute is changed.
> 
>    To get rid of the nasty "clickjacking", I disabled JavaScript before
>    I clicked on the link with the right mouse button to "copy" the URI).
>    What bewildered me: The link is still changed /with Java-Script/
>    disabled! How is this possible?
> 
>    I tried the same thing with a different browser and still see the
>    same behaviour.
> 
>    Is it possible that after a page has been loaded and some scripts
>    already have been executed, disabling JavaScript might not
>    immediately disable running any JavaScript from that moment on?
>    Is it possible that some JavaScript statements still can be executed?
> 
>    I have no idea how else it can be possible that the link is
>    being changed when JavaScript is disabled.
> 
>    Or is there any HTML feature that would allow to have such a
>    change of the DOM happen without JavaScript?          TIA!

They could be using CSS to hide one link, on hover, and show another?

Andrew Poulos

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