What version of Hono are you using?

4.9.9

What runtime/platform is your app running on? (with version if possible)

browser service worker (Chrome)

What steps can reproduce the bug?

1: Run Hono in a Service Worker context using fire() from hono/service-worker
2: Define routes

   app.get('/users/', (c) => c.html(...))
   app.get('/users/:id', (c) => c.html(...))

3: User navigates to the page with a fragment:

GET /users/#user-list
GET /users/1#profile-section

What is the expected behavior?

• /users/#user-list matches /users/ route
• /users/1#profile-section matches /users/:id route with id = "1"

What do you see instead?

• /users/#user-list matches /users/:id route with id = "#user-list"
• /users/1#profile-section matches /users/:id but with id = "1#profile-section"

This occurs because Service Workers receive the full URL including fragments, unlike traditional web servers where browsers strip fragments before sending requests. Hono's route matcher treats # as a regular character.

Additional information

No response