Include plugin script during export

What I want to do:

• make a plugin
• that tries to load a script from a remote location (to save bandwidth)
• but if it fails loads a remote version instead

I think this sort of thing is fairly common... I've seen it done with Google Analytics a lot. Even C2 does it with jQ. I'm asking for my Playtomic plugin.

The problem:

To include the local version of the script during export I set dependency in edittime.js's GetPluginSettings (I copied the method from the Facebook plugin). However this also automatically adds it to the HTML therefore making the remote loading useless!

What would help me is a way to include a script during export, but NOT automatically add a <script> tag for it to the html.

I couldn't find anything like this using the search or manual.

Ideas, suggestions, etc please <img src="smileys/smiley1.gif" border="0" align="middle">

The Facebook API actually uses dynamic script loading like you say. You just need to dynamically create a <script> tag and append it to the document head tag, something like this:

var s = document.createElement("script");
s.src = "//myapi.com/foo.js";
document.getElementsByTagName("head")[0].appendChild(s);

In the first release I ended up using $.getScript(url, callback) to do remote loading, because like you said it takes a little to load and I like the built-in callback.

But what's the advantage of not having a local fallback?

By copying the method from Facebook I meant how the channel.html file is included locally. I thought remote loading + local fallback would give the best of both. If there's no option for what I want yet, that's cool it's not that important.