Fix routing requests without method

History.md

@@ -1,6 +1,7 @@
 unreleased
 ==========
 
+  * Fix routing requests without method
   * deps: body-parser@1.20.2
     - Fix strict json error message on Node.js 19+
     - deps: content-type@~1.0.5

lib/router/route.js

@@ -60,7 +60,10 @@ Route.prototype._handles_method = function _handles_method(method) {
     return true;
   }
 
-  var name = method.toLowerCase();
+  // normalize name
+  var name = typeof method === 'string'
+    ? method.toLowerCase()
+    : method
 
   if (name === 'head' && !this.methods['head']) {
     name = 'get';
@@ -103,8 +106,10 @@ Route.prototype.dispatch = function dispatch(req, res, done) {
   if (stack.length === 0) {
     return done();
   }
+  var method = typeof req.method === 'string'
+    ? req.method.toLowerCase()
+    : req.method
 
-  var method = req.method.toLowerCase();
   if (method === 'head' && !this.methods['head']) {
     method = 'get';
   }

test/Router.js

@@ -61,6 +61,33 @@ describe('Router', function(){
     router.handle({ method: 'GET' }, {}, done)
   })
 
+  it('handle missing method', function (done) {
+    var all = false
+    var router = new Router()
+    var route = router.route('/foo')
+    var use = false
+
+    route.post(function (req, res, next) { next(new Error('should not run')) })
+    route.all(function (req, res, next) {
+      all = true
+      next()
+    })
+    route.get(function (req, res, next) { next(new Error('should not run')) })
+
+    router.get('/foo', function (req, res, next) { next(new Error('should not run')) })
+    router.use(function (req, res, next) {
+      use = true
+      next()
+    })
+
+    router.handle({ url: '/foo' }, {}, function (err) {
+      if (err) return done(err)
+      assert.ok(all)
+      assert.ok(use)
+      done()
+    })
+  })
+
   it('should not stack overflow with many registered routes', function(done){
     this.timeout(5000) // long-running test