fix(global): ensure ts files are mapped to js

Author: adamdbradley

src/compiler/app/app-global-scripts.ts

@@ -76,11 +76,17 @@ async function bundleProjectGlobal(config: Config, compilerCtx: CompilerCtx, bui
   // prepend the output content on top of the core js
   // this way external collections can provide a shared global at runtime
 
-  if (!entry) {
+  if (typeof entry !== 'string') {
     // looks like they never provided an entry file, which is fine, so let's skip this
     return '';
   }
 
+  if (entry.toLowerCase().endsWith('.ts')) {
+    entry = entry.substr(0, entry.length - 2) + 'js';
+  } else if (entry.toLowerCase().endsWith('.tsx')) {
+    entry = entry.substr(0, entry.length - 3) + 'js';
+  }
+
   // ok, so the project also provided an entry file, so let's bundle it up and
   // the output from this can be tacked onto the top of the project's core file
   // start the bundler on our temporary file