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How can I go about setting up a fallback script, using jQuery or any other method? Why does this method not work?

https://api.jquery.com/jQuery.getScript/#jQuery-getScript

I use the code below to set a fallback script in case I get a 404 or similar on my primary script.

  $.getScript( "https://cdnjs.cloudflare.com/ajax/libs/three.js/r123/three.min.js" )
    .fail(function( jqxhr, settings, exception ) {
      $.getScript( "https://cdn.jsdelivr.net/npm/[email protected]/build/three.min.js" )
    })

When I add some random characters to the first URL to simulate a situation where the script is unavailable, I expect my code to load the script from the second URL and continue execution, but I get this error instead

GET https://cdnjs.cloudflare.com/ajax/libs/three.js/r123/threes.min.js?_=1608231826270 net::ERR_ABORTED 404

And my code is halted.

This shouldn't be happening since all my code is in the .done() callback of the first $.getScript call.

Improve this question
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  • i would go for $.ajax and use error function, after quick internetsearch it seem getscript does not have crossdomain errorhandling Commented Dec 17, 2020 at 20:48
  • stackoverflow.com/questions/13670421/… Commented Dec 17, 2020 at 23:53
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