Groups > comp.lang.javascript > #19694

Re: Set iframe src without default.

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Message-ID	<3387373.LFUtorD41v@PointedEars.de> (permalink)
From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <usenet@PointedEars.de>
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Date	Wed, 08 May 2013 14:33:05 +0200
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Subject	Re: Set iframe src without default.
Newsgroups	comp.lang.javascript
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Andrew Poulos wrote:

> On 8/05/2013 7:35 PM, Stefan Weiss wrote:
>> On 2013-05-08 00:08, Andrew Poulos wrote:
>>> I have a page with an iframe in it
>>>
>>> <iframe src="blah.htm"></frame>
>> ...
>>> How do I keep a default src without the default flashing up before the
>>> src is dynamically changed?
>>
>> Why do you need a default src? Instead of changing the src when the page
> 
> If javascript is not enabled then I still need at least something to
> display.
> 
>> loads, you could create and insert the iframe at that point.
> 
> Thanks, though I take JKK and PE's comments on board that the only
> "real" way to do this is server side.

You have misunderstood me at least.  A good solution to your problem is to 
have the client-side script that changes the iframe document in or included 
by the iframe document.  For you can only say for sure on the *client* side 
whether there is client-side script support, whether it is enabled, and 
whether the support is sufficient for the task – simply by executing the 
relevant code (which would contain feature tests).

Stefan's suggestion is another good idea, but apparently not applicable 
here.

There is also a third way combining both suggestions, but it might not be 
among the best ones here: You can include the iframe element displaying the 
default document (or put other content) and replace that programmatically by 
client-side (DOM) script with a new iframe element that displays another 
document.  This is the same approach you would choose if, for example, you 
wanted to include a static Google Maps map (an image) in an HTML document 
(that would work everywhere), and replace it with an interactive Google Maps 
map if possible (“progressive enhancement”).

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

Thread

Set iframe src without default. Andrew Poulos <ap_prog@hotmail.com> - 2013-05-08 08:08 +1000
  Re: Set iframe src without default. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-05-08 01:14 +0200
    Re: Set iframe src without default. Andrew Poulos <ap_prog@hotmail.com> - 2013-05-08 13:18 +1000
      Re: Set iframe src without default. "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-05-08 08:45 +0300
        Re: Set iframe src without default. Andrew Poulos <ap_prog@hotmail.com> - 2013-05-08 16:53 +1000
          Re: Set iframe src without default. "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-05-08 10:25 +0300
  Re: Set iframe src without default. "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-05-08 08:50 +0300
  Re: Set iframe src without default. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-08 10:25 +0200
    Re: Set iframe src without default. Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-05-09 00:12 +0200
      Re: Set iframe src without default. Christoph Becker <cmbecker69@gmx.de> - 2013-05-09 02:06 +0200
        Re: Set iframe src without default. Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-05-09 11:34 +0200
          Re: Set iframe src without default. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-12 17:46 +0200
  Re: Set iframe src without default. Stefan Weiss <krewecherl@gmail.com> - 2013-05-08 11:35 +0200
    Re: Set iframe src without default. Andrew Poulos <ap_prog@hotmail.com> - 2013-05-08 20:58 +1000
      Re: Set iframe src without default. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-08 14:33 +0200
        Re: Set iframe src without default. Andrew Poulos <ap_prog@hotmail.com> - 2013-05-09 10:10 +1000
          Re: Set iframe src without default. Tim Streater <timstreater@greenbee.net> - 2013-05-09 09:33 +0100
          Re: Set iframe src without default. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-09 12:26 +0200
      Re: Set iframe src without default. Matt McDonald <matt@fortybelow.ca> - 2013-05-08 18:52 -0400
        Re: Set iframe src without default. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-05-09 12:30 +0200

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