Global catch-all route does not work

[macieklamberski]

What version of Bun is running?

1.2.5+013fdddc6

What platform is your computer?

Darwin 24.3.0 arm64 arm

What steps can reproduce the bug?

1. Create example1.ts file with the below content:

   import { serve } from 'bun'
   
   serve({
     routes: {
       '/*': new Response('Global catch-all'),
     },
   })

2. Create example2.ts file with the below content:

   import { serve } from 'bun'
   
   serve({
     routes: {
       '/*': () => new Response('Global catch-all'),
     },
   })

3. Run both examples to see the different behavior.

   bun example1.ts # And open http://localhost:3000
   bun example2.ts # And open http://localhost:3000

What is the expected behavior?

Both examples should work the same — when I enter the root page, I should see the "Global catch-all" text.

What do you see instead?

Currently, this only works with static responses (example 1), even though shows that the second variant with the route handler function is also valid. See point 4. here: https://bun.sh/docs/api/http#route-precedence.

Additional information

No response