flex ExternalInterface won't execute call() function

Question

For some reason, the ExternalInterface.avaiable shows true, but it won't call alert(). Can anyone shed some light to this problem?

private function checkEI():void {
     eiStatus = ExternalInterface.available.toString();
     ExternalInterface.call("alert", "hi");
}

My config is here:

var params = {
    menu: "false",
    scale: "noScale",
    allowFullscreen: "true",
    allowScriptAccess: "always",
    bgcolor: "",
    wmode: "direct" // can cause issues with FP settings & webcam
};

Looks like it has to do with not being in a webserver and the html file just being opened directly by the browser. Is there any way to get it to work without a webserver?

the alert function is the browser alert. everything works IF i'm running it from the web server instead of just opening the file. I'm sure it has something to do with a security policy or something. — LordZardeck, Sep 07 '11 at 02:18

score 0 · Answer 1 · edited Jun 20 '20 at 09:12

0

Here's my answer that I posted a while ago. Hope it helps.

Extract:

I figured out that for some reason ExternalInterface.call doesn't work on a file:// and needs http(s)://

So, anybody who is facing this problem, get your yourself a webserver(Apache) or a GAE for testing these kinds of things

edited Jun 20 '20 at 09:12

Community

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answered Jun 15 '12 at 02:04

Bleeding Fingers

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moropus · Answer 2 · 2011-09-03T07:00:55.600

0

Try to specify both id and classid in embed parameters. It helped me in all the browsers (especially IE).

edited Sep 03 '11 at 07:00

answered Sep 03 '11 at 06:55

moropus

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score -1 · Answer 3 · edited May 23 '17 at 12:12

-1

Have you tried

ExternalInterface.call("javascript:alert", "hi");

On second thought, Flash's security policy disallows the swf from calling a javascript in an html over the file protocol. You will get this error: #2060: Security sandbox violation: ExternalInterface caller file: c:/test.swf cannot access file: c:\testhtml.htm

I believe a similar question also exists at Does ExternalInterface work on the file: protocol?

edited May 23 '17 at 12:12

Community

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answered Sep 03 '11 at 08:01

Pranav Hosangadi

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`ExternalInterface.call("javascript:alert", "hi");` and `ExternalInterface.call("alert", "hi");` What is the difference? – Benny Sep 03 '11 at 09:32
Well just a thought. If I am calling a JavaScript function from html I usually use javascript:myFunction() – Pranav Hosangadi Sep 04 '11 at 07:37
You can use. But your answer will not fit with the question. – Benny Sep 04 '11 at 08:51
well yeah, but in some browsers only `javascript:function()` works – Pranav Hosangadi Sep 09 '11 at 16:10
Well I haven't done any javascript for a while now but I believe firefox 4 and less, and IE 7 used to do that – Pranav Hosangadi Sep 10 '11 at 05:56
proof of what? I don't think any proof is required because these browsers are now almost extinct and it is pointless arguing about something that's not going to make a difference anyway. – Pranav Hosangadi Sep 10 '11 at 06:11

flex ExternalInterface won't execute call() function

3 Answers3