new WWW(s_url) works in Editor but hangs in browser

Target Platforms Web
1

We’ve got really simple WWW class code, nearly copied from the Unity script reference. We’re using absolute paths. But it fails when we make a build and run it in the browser.

var w3_file : WWW;
var s_lang_url = "http://www.google.com"; //just a very simple, very common page
w3_file = new WWW (s_lang_url); // Start a download of the given URL
while ( w3_file.isDone == false) {
     //We could put in progress bar here
}
//more code

Isn’t this supposed to work? In a browser it just says “read www.google.com” and hangs. But it works great in the Editor.

We tried reading from a file on the same domain, in the same folder, as the Unity build. But it’s still failing.

2

Don’t use a “while” loop. Unity may need to advance the frame in order to read the downloaded data. WWW transfers are asynchronous.

Instead, in the Update or in a coroutine, check isDone and let the frame advance if it isn’t. Keep checking at most once per frame until it’s done.

EDIT: From the documentation,