Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Javascript Redirection Not Working

  • 2 amsoshi
  • 1 yana da wannan matsala
  • 13 views
  • Amsa ta ƙarshe daga Fred

more options

Hello,

I have a web page that prints a document, and then redirects back to the main page. This website has always worked in every browser, and now in Firefox 84.0.2 it no longer redirects.

What changed in Firefox, and how do I get it redirecting again?

Here is a snippet of the code in question:

<script type='text/javascript'>

    var interval = setInterval(function() {
         if(document.readyState === 'complete') {
              clearInterval(interval);
              window.print();
         }
    }, 100);
    
    window.onbeforeprint = function() {
         window.location = 'https://www.mozilla.org';
    }

</script>

Hello, I have a web page that prints a document, and then redirects back to the main page. This website has always worked in every browser, and now in Firefox 84.0.2 it no longer redirects. What changed in Firefox, and how do I get it redirecting again? Here is a snippet of the code in question: <script type='text/javascript'> var interval = setInterval(function() { if(document.readyState === 'complete') { clearInterval(interval); window.print(); } }, 100); window.onbeforeprint = function() { window.location = 'https://www.mozilla.org'; } </script>

All Replies (2)

more options

FWIW this is the type of issue to report at https://bugzilla.mozilla.org/ rather than this end user support forum.

That said, it seems weird that you would navigate away from the page to be printed in `onbeforeprint`. Why not `onafterprint`?

more options

Jonathan Watt said

FWIW this is the type of issue to report at https://bugzilla.mozilla.org/ rather than this end user support forum. That said, it seems weird that you would navigate away from the page to be printed in `onbeforeprint`. Why not `onafterprint`?

Hi Jonathan,

Thank you for the reply. I use onbeforeprint in Firefox, because onafterprint does not seem to work.

For the time being, and just in case anyone else is having the issue, I have found that using a seperate setTimeout with an interval of 5 seconds seems to work for my purpose.