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Asked: 2026-05-16T02:26:08+00:00

I know most mobile browsers don’t support javascript, how can I check this?

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I know most mobile browsers don’t support javascript,

how can I check this?

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  1. Editorial Team

    Don’t hold it against me if it isn’t helpful 😉 But this seems relevant:
    http://kb2.adobe.com/cps/140/tn_14086.html

    From the site (edited and abridged):

    This approach to Flash Player detection relies on two key elements; a Flash plug-in "sniffer" that uses the GetURL action which only the Flash 4 Player will respond to, and an HTML page with a META refresh tag.The index page of the site will use a Flash movie to detect for version 4 of the Flash Player and direct those browsers to the Flash 4 content. If the user hits the index page either without the Flash Player or with version 2 or 3 of the player, the META refresh tag will automatically send them to a non-Flash page which will prompt them to download version 4 of the Flash Player. This scheme works without using any JavaScript, making it both simpler and more browser-compatible.

    Creating a Flash 4 "sniffer":

    1. Create a new Flash movie …

    2. In Modify > Movie set the movie’s dimensions to 18px wide and 18px high. This is the smallest a Flash movie can be created …

    3. Insert keyframes on frame 1 and 2. Select frame 2 and choose Modify > Frame. In the Frame Properties dialog box attach a Get URL action. In the URL field put the URL to the HTML page that will make up the real Flash site. Most importantly: put the URL in quotes and set the Get URL field to expression. This assures that only the Flash 4 player will execute this action.

    4. Add another action to this list – Stop. Select OK.

    5. Using the Flash 4 Publish feature, create an HTML file using the Flash 4 only (default) template. This will be the index.html page for this Flash site.

    Creating a META refresh tag in a HTML document:

    1. Open the index.html document in an editor such as Macromedia’s Dreamweaver.
    2. In the <HEAD> tag of the HTML document create a META refresh tag … <META HTTP-EQUIV="Refresh" CONTENT="10; URL=alternative.html"> … The file name "alternative.html" should be substituted with the name of your page that contains the alternate content, in the case that the user does not have the Flash 4 Player installed.
    3. [Create the alternative page – alternative.html – or whatever you’ve named it]
    4. [Add appropriate content and links to the relevant flash download pages]
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