I&#x27;m not sure that is true. No one is saying external libraries cannot be loaded. It is actually a good idea to be able to rely on certain popular libraries already on the client; this makes a lot of sense. You can still have the existing mechanism so I don&#x27;t think browser vendor are going to hold everyone hostage.<p>If you like, there could be mutually agreed upon standard repository that browser vendors routinely update from.<p>Sure, your less popular experimental library won&#x27;t be in the list, that&#x27;s what &quot;&lt;script src=...&quot; is for.<p>It probably won&#x27;t happen but it is hard to defend the position that it is a bad idea, I think.