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Groups > comp.lang.javascript > #8763

Re: javascript: and about: Protocols Not Working

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Jukka K. Korpela wrote:



> But returning to javascript: URLs, yesterday I stumbled across a bug
> (some key links not working at all on some modern browsers), which
> turned out to be caused by legacy code that uses an href attribute with
> javascript: URL _and_ target="_blank". Isolated to a simple case:
> http://www.cs.tut.fi/~jkorpela/js/target.html
> On Firefox 8, the "link" opens a new tab with about:blank contents. With
> the target attribute removed,
> http://www.cs.tut.fi/~jkorpela/js/targetless.html
> it works as intended.


With the target being set, the browser first opens a new tab and in the 
contents of that tab evaluates the Javascript code. As there is no 
content at all in that tab the function call "openUp()" to a function 
named "openUp" fails as no function is defined at all in the new tab. At 
least that is how Mozilla and Opera do it, Chrome does what you want.
An attempt to "fix" that or at least to demonstrate the issue is 
http://home.arcor.de/martin.honnen/html/test2011120201.html but it now 
only gives a popup in Firefox and Chrome, Opera blocks it. And of course 
with Firefox you now have a new empty tab and a popup window.

So none of that is really a viable approach.


-- 

	Martin Honnen --- MVP Data Platform Development
	http://msmvps.com/blogs/martin_honnen/

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Thread

javascript: and about: Protocols Not Working Gene Wirchenko <genew@ocis.net> - 2011-11-30 18:28 -0800
  Re: javascript: and about: Protocols Not Working Martin Honnen <mahotrash@yahoo.de> - 2011-12-01 11:53 +0100
    Re: javascript: and about: Protocols Not Working Richard Cornford <Richard@litotes.demon.co.uk> - 2011-12-01 04:29 -0800
    Re: javascript: and about: Protocols Not Working Tim Streater <timstreater@greenbee.net> - 2011-12-01 12:37 +0000
      Re: javascript: and about: Protocols Not Working Martin Honnen <mahotrash@yahoo.de> - 2011-12-01 14:02 +0100
        Re: javascript: and about: Protocols Not Working Martin Honnen <mahotrash@yahoo.de> - 2011-12-01 14:19 +0100
          Re: javascript: and about: Protocols Not Working "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2011-12-02 11:31 +0200
            Re: javascript: and about: Protocols Not Working Martin Honnen <mahotrash@yahoo.de> - 2011-12-02 15:43 +0100
              Re: javascript: and about: Protocols Not Working "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2011-12-02 19:57 +0200
    Re: javascript: and about: Protocols Not Working Richard Cornford <Richard@litotes.demon.co.uk> - 2011-12-01 04:03 -0800
    Re: javascript: and about: Protocols Not Working Gene Wirchenko <genew@ocis.net> - 2011-12-01 12:14 -0800
      Re: javascript: and about: Protocols Not Working Erwin Moller <Since_humans_read_this_I_am_spammed_too_much@spamyourself.com> - 2011-12-02 10:01 +0100
        Re: javascript: and about: Protocols Not Working Gene Wirchenko <genew@ocis.net> - 2011-12-02 12:35 -0800
          Re: javascript: and about: Protocols Not Working Tim Streater <timstreater@greenbee.net> - 2011-12-02 20:39 +0000
            Re: javascript: and about: Protocols Not Working Gene Wirchenko <genew@ocis.net> - 2011-12-02 13:56 -0800
              Re: javascript: and about: Protocols Not Working Tim Streater <timstreater@greenbee.net> - 2011-12-02 23:40 +0000
              Re: javascript: and about: Protocols Not Working Dr J R Stockton <reply1148@merlyn.demon.co.uk> - 2011-12-03 19:13 +0000
            Re: javascript: and about: Protocols Not Working Jake Jarvis <pig_in_shoes@yahoo.com> - 2011-12-02 23:01 +0100
  Re: javascript: and about: Protocols Not Working Arno Welzel <usenet@arnowelzel.de> - 2011-12-04 15:46 +0100
  Re: javascript: and about: Protocols Not Working Bwig Zomberi <zomberiMAPSONNOSPAM@gmail.invalid> - 2011-12-06 11:41 +0530

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