Execute Javascript method from browser address bar - GWT

问题

I'm trying to execute Javascript on my web application by executing this on the browser URL/address bar:

javascript:window.alert('test');void(0);

However, nothing happens and the alert box is not showing up? Could the reason be that the app is running in DevMode?

回答1:

I believe most browsers refuse to execute javascript: URLs from the URL bar as a safety measure (there's been messages on the web –esp. Facebook– telling people to copy-paste a javascript: URL to their URL bar that triggered an XSS). They didn't want to break bookmarklets though, so you can put that code in a bookmark; but it's much easier to just open the browser's JS console and type that command there.

Anyway, it's not due to GWT's DevMode.

回答2:

You can write your javascript code inside the block like this

javascript:{alert("ok");}

来源：https://stackoverflow.com/questions/18782297/execute-javascript-method-from-browser-address-bar-gwt