window.onbeforeunload vs window.print in Internet Explorer

Question

One of my pages shows a discount code, and if you try to navigate away I use the window.onbeforeunload to alert the user to write down the code because otherwise it will be lost forever. That page has also a print button, so the user can print the voucher.

The problem is that, in Internet Explorer when the user click on the link <a href="javascript:window.print();"> , the event window.onbeforeunload is raised. This doesn't happen in Chrome.

Is there a way to solve this?

I've seen that if I try this:

<a href="javascript:alert('herp');window.print();">

The 'herp' message appears after the warning showed by window.onbeforeunload , so I don't know how to fix this.

Answer 1

只需使用<a onclick="window.print();">代替href属性即可。