Adobe Community: Problem with swf breaking after using Firefox back button

62,004 posts
Jul 21, 2002

Currently Being Moderated

1. kglad,

Oct 8, 2011 11:51 AM in reply to mirolechat

Report

use a preloader swf to load your main swf. when loading your main swf, append a random query string to prevent your swf's retrieval from the browser cache.

|

Mark as:

Currently Being Moderated

2. mirolechat,

Oct 10, 2011 12:30 PM in reply to kglad

Report

tried this out and it didn't solve the problem. The code appears to work properly, as the shell loads the movie, but it doesn't fix the bug of my flash freezing. Here's the code I used in the shell

loadMovieNum("Vitalsigns_main.swf?ver=" + Math.floor(Math.random() * 999), 1);

does this look correct?

is there anything I should be doing in my buttons that load the pages? It's so strange that linking to the same pages through html and clicking on the browser back button does not have the same effect.

Here's an example of the code I'm using in flash to link to the pages.

getURL("http://www.psp.wa.gov/vitalsigns/sound_behavior_index.php");

any help you can provide is most appreciated.

|

Mark as:

62,004 posts
Jul 21, 2002

Currently Being Moderated

3. kglad,

Oct 10, 2011 12:34 PM in reply to mirolechat

Report

are you using setInterval() or setTimeout?

|

Mark as:

Currently Being Moderated

4. mirolechat,

Oct 10, 2011 12:52 PM in reply to kglad

Report

neither.

|

Mark as:

62,004 posts
Jul 21, 2002

Currently Being Moderated

5. kglad,

Oct 10, 2011 1:19 PM in reply to mirolechat

Report

check for bug reports to see if this is a known ff7/mac issue.

|

Mark as:

Currently Being Moderated

6. mirolechat,

Oct 10, 2011 2:00 PM in reply to kglad

Report

another piece of the puzzle. If I click outside of the swf, the controls work again.

|

Mark as:

62,004 posts
Jul 21, 2002

Currently Being Moderated

7. kglad,

Oct 10, 2011 3:45 PM in reply to mirolechat

Report

what's your url?

|

Mark as:

Currently Being Moderated

8. mirolechat,

Oct 10, 2011 3:53 PM in reply to kglad

Report

the page I'm working on is

www.psp.wa.gov/vitalsigns/

In trying to isolate the problem I created a version that strips everything else out and explains the issue

www.psp.wa.gov/vitalsigns/freezetest.html

|

Mark as:

Currently Being Moderated

9. mirolechat,

Oct 11, 2011 10:16 AM in reply to mirolechat

Report

I'm pretty sure this is a bug in firefox. Thanks for your assistance!

|

Mark as:

62,004 posts
Jul 21, 2002

Currently Being Moderated

10. kglad,

Oct 11, 2011 11:07 AM in reply to mirolechat

Report

you're welcome.

|

Mark as:

Currently Being Moderated

11. igor22co,

Nov 8, 2011 10:34 AM in reply to mirolechat

Report

I'm having a similar issue with firefox and the back button. The flash version of my site just links together html pages with swf movies. After the back button is pressed, none of the buttons will work (sometimes, just a blank page). I've found that it is not a problem in other browsers as well as earlier versions of firefox; where the site works perfectly. The site is unfinished, but I've been stuck trying to remedy this for a week.

http://www.starnavigation.ca/Main.html

I'm looking for any new information on this issue.

|

Mark as:

Currently Being Moderated

12. mirolechat,

Nov 8, 2011 10:42 AM in reply to igor22co

Report

I researched this and came to the conclusion that it's a bug in the latest version of firefox. I tested it on an older version (of firefox) and it worked fine. None of the work arounds I tried fixed the problem (loading into a shell, and forcing the browser to not cache). I logged it as a bug so hopefully it will get fixed in the next update. Good luck. let me know if you find anything that works.

|

Mark as:

Currently Being Moderated

13. murfmee,

Feb 24, 2012 12:02 AM in reply to mirolechat

Report

A work-around that you can try is:

Once the Flash loads have it check the browser's user-agent, if the browser is Firefox then call a JavaScript which shifts the focus off of the Flash and onto some other DOM object, such as a link or an input field.

Example Script for in the Flash

var ua:String = ExternalInterface.call("window.navigator.userAgent.toString");

if(ua.indexOf("Firefox") > -1)

{

ExternalInterface.call("firefoxFlashFix");

}

Example JavaScript for on the Page (Note: This uses jQuery, but it doesn't have to.)

function firefoxFlashFix(){

// set the focus to something other than the Flash

$(".myLink").focus();

}

</script>

I hope that works for you, it did for me. ^_^

|

Mark as:

Currently Being Moderated

14. jjcharles,

Apr 24, 2012 5:16 PM in reply to mirolechat

Report

Im having the same problems that you had did fix your problem and if so how?

|

Mark as:

Currently Being Moderated

15. mirolechat,

Apr 25, 2012 10:10 AM in reply to jjcharles

Report

I haven't had a chance to try out murfmee's workaround above, but that's my best bet so far. Nothing else I've tried has work. If you try it out, I'd love to hear if it works!

|

Mark as:

Currently Being Moderated

16. igor22co,

Apr 25, 2012 3:59 PM in reply to jjcharles

Report

I've switched the way I embed the swf twice since I've noticed the problem. This works for firefox...

swfobject.registerObject("myId", "9.0.115", "expressInstall.swf")

</script>

You can try it on my site: http://www.star-navigation.com/

You can find how-to and other info here: http://code.google.com/p/swfobject/

|

Mark as:

Currently Being Moderated

17. sunka1,

Sep 25, 2012 9:16 AM in reply to mirolechat

Report

After encountering, and reading about this issue extensively, I have found a work-around for the Firefox Back Button/Flash-based Link incompatibility.

Apparently, Firefox uses a Back-Forward Cache (bfcache) to store the state of all web pages in the current session's history. You must disable this state-caching for your particular page, by embedding this JavaScript in the body of your HTML wrapper:

<script type="text/javascript">
window.onunload = function(){};
</script>

I have tested this for OSX Firefox 15.0.1 and Flash Plugin 11.4.402.265.

Source: http://stackoverflow.com/questions/2638292/after-travelling-back-in-fi refox-history-javascript-wont-run

|

Mark as:

ActionScript 1 and 2

Problem with swf breaking after using Firefox back button

Oct 7, 2011 2:39 PM

More Like This

Bookmarked By (0)

Answers + Points = Status