Question

I am asynchronously loading scripts through LabJS and have a chain of dependent scripts. Now if one of the scripts in the chain breaks (in the sense that it can not be downloaded, or connection times out) I believe that the remaining scripts under the dependency chain will not be executed. In such an event, is it possible to provide a custom callback function to take appropriate measures if a particular script fails to load ?
If this is not possible with LabJS, is it possible with any other Asynchronous script loader ?

Answer 1

Here’s an example showing how to wrap setTimeout() timeouts around LABjs code… in this case it provides a fallback mechanism where it tries to load jquery from a CDN, then if the timeout passes, it aborts that and tries to load jquery from a local file instead.

https://gist.github.com/670840