Fix global when typescript.js loaded as script

Author: jakebailey

Herebyfile.mjs

@@ -216,7 +216,7 @@ function createBundler(entrypoint, outfile, taskOptions = {}) {
             // Monaco bundles us as ESM by wrapping our code with something that defines module.exports
             // but then does not use it, instead using the `ts` variable. Ensure that if we think we're CJS
             // that we still set `ts` to the module.exports object.
-            options.footer = { js: `})(typeof module !== "undefined" && module.exports ? module : { exports: ts });\nif (typeof module !== "undefined" && module.exports) { ts = module.exports; }` };
+            options.footer = { js: `})({ get exports() { return ts }, set exports(v) { ts = v; if (typeof module !== "undefined" && module.exports) { module.exports = v } } })` };
 
             // esbuild converts calls to "require" to "__require"; this function
             // calls the real require if it exists, or throws if it does not (rather than