Revert "Updating proxy to return 301 to add a "/" at the end for #4958"

pkg/apiserver/proxy.go

@@ -191,15 +191,6 @@ func (r *ProxyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 		return
 	}
 
-	// Redirect requests of the form "/{resource}/{name}" to "/{resource}/{name}/"
-	// This is essentially a hack for https://github.com/GoogleCloudPlatform/kubernetes/issues/4958.
-	// Note: Keep this code after tryUpgrade to not break that flow.
-	if len(parts) == 2 && !strings.HasSuffix(req.URL.Path, "/") {
-		w.Header().Set("Location", req.URL.Path+"/")
-		w.WriteHeader(http.StatusMovedPermanently)
-		return
-	}
-
 	proxy := httputil.NewSingleHostReverseProxy(&url.URL{Scheme: location.Scheme, Host: location.Host})
 	if transport == nil {
 		prepend := path.Join(r.prefix, resource, id)

pkg/apiserver/proxy_test.go

@@ -367,59 +367,3 @@ func TestProxyUpgrade(t *testing.T) {
 		t.Fatalf("expected '%#v', got '%#v'", e, a)
 	}
 }
-
-func TestRedirectOnMissingTrailingSlash(t *testing.T) {
-	table := []struct {
-		// The requested path
-		path string
-		// The path requested on the proxy server.
-		proxyServerPath string
-	}{
-		{"/trailing/slash/", "/trailing/slash/"},
-		{"/", "/"},
-		// "/" should be added at the end.
-		{"", "/"},
-		// "/" should not be added at a non-root path.
-		{"/some/path", "/some/path"},
-	}
-
-	for _, item := range table {
-		proxyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-			if req.URL.Path != item.proxyServerPath {
-				t.Errorf("Unexpected request on path: %s, expected path: %s, item: %v", req.URL.Path, item.proxyServerPath, item)
-			}
-		}))
-		defer proxyServer.Close()
-
-		serverURL, _ := url.Parse(proxyServer.URL)
-		simpleStorage := &SimpleRESTStorage{
-			errors:                    map[string]error{},
-			resourceLocation:          serverURL,
-			expectedResourceNamespace: "ns",
-		}
-
-		handler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
-		server := httptest.NewServer(handler)
-		defer server.Close()
-
-		proxyTestPattern := "/api/version/proxy/namespaces/ns/foo/id" + item.path
-		req, err := http.NewRequest(
-			"GET",
-			server.URL+proxyTestPattern,
-			strings.NewReader(""),
-		)
-		if err != nil {
-			t.Errorf("unexpected error %v", err)
-			continue
-		}
-		// Note: We are using a default client here, that follows redirects.
-		resp, err := http.DefaultClient.Do(req)
-		if err != nil {
-			t.Errorf("unexpected error %v", err)
-			continue
-		}
-		if resp.StatusCode != 200 {
-			t.Errorf("Unexpected errorCode: %v, expected: 200. Response: %v, item: %v", resp.StatusCode, resp, item)
-		}
-	}
-}