pkg syscall, type Conn interface { SyscallConn }
pkg syscall, type Conn interface, SyscallConn() (RawConn, error)
pkg syscall, type RawConn interface { Control, Read, Write }
pkg syscall, type RawConn interface, Control(func(uintptr)) error
pkg syscall, type RawConn interface, Read(func(uintptr) bool) error
pkg syscall, type RawConn interface, Write(func(uintptr) bool) error
pkg testing, method (*B) Helper()

        assertNotNull(result);
        assertTrue(result.contains("Valid XML text 123"));
    }

    public void test_stripInvalidXMLCharacters_withInvalidChars() {
        // Test with invalid control characters (0x1-0x8, 0xB, 0xC, 0xE-0x1F)
        String input = "Test\u0001\u0002\u0008Valid\u000B\u000C\u000EText";
        String result = XmlUtil.stripInvalidXMLCharacters(input);
        assertEquals("TestValidText", result);

    // ===================================================================================
    //                                                                    Control Override
    //                                                                    ================
    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override

    // ===================================================================================
    //                                                                    Control Override
    //                                                                    ================
    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override

    // ===================================================================================
    //                                                                    Control Override
    //                                                                    ================
    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override

    // ===================================================================================
    //                                                                    Control Override
    //                                                                    ================
    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override

            }
        }

        @Override
        protected boolean doDisconnect(boolean hard, boolean inUse) throws IOException {
            return disconnectResult;
        }

        // Test control methods
        public void setState(int state) {
            this.state = state;
        }

        public void setPeekedKey(Long key) {
            this.peekedKey = key;
        }

The middleware responds to two particular types of HTTP request...

### CORS preflight requests { #cors-preflight-requests }

These are any `OPTIONS` request with `Origin` and `Access-Control-Request-Method` headers.

In this case the middleware will intercept the incoming request and respond with appropriate CORS headers, and either a `200` or `400` response for informational purposes.

    // transmitted until the flow-control window is updated from the first request.
    val call2 = client.newCall(Request(server.url("/")))
    val response2 = call2.execute()
    assertThat(response2.code).isEqualTo(200)

    // Close the response body. This should discard the buffered data and update the connection
    // flow-control window.
    response1.close()

EVENT_EXPANDED = `expanded${EVENT_KEY}`\n\nconst SELECTOR_CONTROL_SIDEBAR = '.control-sidebar'\nconst SELECTOR_CONTROL_SIDEBAR_CONTENT = '.control-sidebar-content'\nconst SELECTOR_DATA_TOGGLE = '[data-widget=\"control-sidebar\"]'\nconst SELECTOR_HEADER = '.main-header'\nconst SELECTOR_FOOTER = '.main-footer'\n\nconst CLASS_NAME_CONTROL_SIDEBAR_ANIMATE = 'control-sidebar-animate'\nconst CLASS_NAME_CONTROL_SIDEBAR_OPEN = 'control-sidebar-open'\nconst CLASS_NAME_CONTROL_SIDEBAR_SLIDE = 'control-sidebar-slide-open'\nconst...