You're not making any sense whatsoever any more. The decision to combine 20 <script> sources into the same execution context is the BROWSERS decision. NOT java

You're not making any sense whatsoever any more. The decision to combine 20 <script> sources into the same execution context is the BROWSERS decision. NOT javascripts. It's the BROWSER that doesn't have any concept of allowing <script> fine grained permissions within the execution context, or specifying you'd prefer if the browser put that script in a separate execution context. It's the BROWSER that needs fixing here, not js.