Close the browser window and control its failure
- 2020-03-30 02:38:24
- OfStack
Run the following code when the js page loads
This code does not show the value of return in firefox or Internet explorer and displays this text in the Google browser.
Failure to control
Trigger js to run as follows:
window.onbeforeunload = function(){
return " Unsaved content may be lost ";
};
This code does not show the value of return in firefox or Internet explorer and displays this text in the Google browser.
Failure to control
Trigger js to run as follows:
window.onbeforeunload = function(){};