Jumping to a new HTML page with JavaScript

Question

In my HTML page, I need to check if Adobe Flash player is installed. If not, I want to automatically jump to another HTML page to tell the user that Flash player is required.

I'm using JavaScript to check if the Flash player is available, using the 'JavaScript Flash detection library'.

The body of my HTML page looks like this:

<body>
    <script type="text/javascript"> 
    if(!FlashDetect.installed)
    {
        alert("Flash 9.0.115 is required to enjoy this site.");
    }
    </script>
    ...
    ...

The detection is working: I can see the alert, but I didn't find a way to jump to another HTML page.

Any hint?

Edit: There is something I didn't mention which seems to make a difference: the HTML pages are local pages (running from a CD-ROM), and I'd like to jump to an HTML page which is located in the current directory.

What happens when someone wants to use the site instead of enjoying it, and he doesn't have flash player? — bandi, Jan 14 '09 at 09:31

Georg Schölly · Accepted Answer · 2009-01-14T12:21:12.977

40

window.location.href = "http://stackoverflow.com";

For local files this should work if you know the relative path: (In your case this works.)

window.location.href = "someOtherFile.html";

Maybe you could also do it absolute using this: (Not tested.)

window.location.pathname = "/path/to/another/file.html/";

The problem are the security measures of the browser vendors. Google has some good information about it.

edited Jan 14 '09 at 12:21

answered Jan 14 '09 at 09:26

Georg Schölly

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+1 Safer than document.location though I'm always forgetting that myself – annakata Jan 14 '09 at 09:29
I didn't know there was that. ;) (Safe by ignorance) – Georg Schölly Jan 14 '09 at 09:30
It's kind of old school, which is probably synonymous with unsafe :P – annakata Jan 14 '09 at 09:55
Actually it is working with an http address, but in my case, I'd like to jump to a local html page. I'm actually creating a CD ROM for presentation and I'd like to jump to an HTML page of the CD-ROM. – Jérôme Jan 14 '09 at 11:05
it is now working : I had a bug with IE7 because there was a html comment between the HTML tag and HEAD tag ! – Jérôme Jan 28 '09 at 10:15

score 5 · Answer 2 · answered Jan 14 '09 at 10:58

Be very wary of instant JavaScript redirects. Flash detection scripts can be wrong(*) so it's best to allow the user to decide Flash-or-not themselves with some kind of manual override, or simply using fallback content.

Writing to location.href works but can "break the back button" - if the user presses Back and your page insta-redirects them forward a page again they're unlikely to be happy. location.replace('...') avoids this problem.

(* - there are two approaches to Flash detection, neither of them reliable. Creating a Flash instance and sniffing for it breaks with software like FlashBlock or just slow loading, and sniffing for plugins directly is not standardised and likely to break on more obscure platforms. Adobe's own code at http://www.adobe.com/devnet/flashplayer/articles/future_detection_print.html ends up resorting to sniffing the UA string, ugh.)

score 0 · Answer 3 · edited Feb 22 '23 at 18:15

0

this also works:

location.assign("http://www.example.com/another.html");

edited Feb 22 '23 at 18:15

Moritz Ringler

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answered Feb 18 '23 at 11:36

azizkale

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Jumping to a new HTML page with JavaScript

3 Answers3

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