class MainTest {
  @Test
  fun simple() {
    val request = fromArgs("http://example.com").createRequest()
    assertThat(request.method).isEqualTo("GET")
    assertThat(request.url.toString()).isEqualTo("http://example.com/")
    assertThat(request.body).isNull()
  }

  @Test
  @Throws(IOException::class)
  fun put() {
    val request = fromArgs("-X", "PUT", "-d", "foo", "http://example.com").createRequest()

      .assertLogEqual("--> END GET")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Length: 0")
      .assertLogEqual("<-- END HTTP")
      .assertNoMoreLogs()
    networkLogs
      .assertLogEqual("--> GET $url http/1.1")
      .assertLogEqual("Host: $host")
      .assertLogEqual("Connection: Keep-Alive")
      .assertLogEqual("Accept-Encoding: gzip")

So, all these are different origins:

* `http://localhost`
* `https://localhost`
* `http://localhost:8080`

Even if they are all in `localhost`, they use different protocols or ports, so, they are different "origins".

## Steps { #steps }

		},
		{
			[]string{"http://host{0...5}/data{1...28}"},
			[]uint64{168},
			[][]uint64{{12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12}},
			12,
			true,
		},
		// Incorrect custom set drive count.
		{
			[]string{"http://host{0...5}/data{1...28}"},
			[]uint64{168},
			nil,
			10,
			false,
		},
		// Failure not divisible number of disks.
		{
			[]string{"http://host{1...11}/data{1...11}"},

```TOML hl_lines="5  12  20"
[http]
  [http.middlewares]

    [http.middlewares.api-stripprefix.stripPrefix]
      prefixes = ["/api/v1"]

  [http.routers]

    [http.routers.app-http]
      entryPoints = ["http"]
      service = "app"
      rule = "PathPrefix(`/api/v1`)"
      middlewares = ["api-stripprefix"]

  [http.services]

    [http.services.app]

echo -n "Starting MinIO instances ..."
minio server --address 127.0.0.1:9001 --console-address ":10000" "http://127.0.0.1:9001/tmp/sitea/data/disterasure/xl{1...4}" \
	"http://127.0.0.1:9002/tmp/sitea/data/disterasure/xl{5...8}" >/tmp/sitea_1.log 2>&1 &
minio server --address 127.0.0.1:9002 "http://127.0.0.1:9001/tmp/sitea/data/disterasure/xl{1...4}" \
	"http://127.0.0.1:9002/tmp/sitea/data/disterasure/xl{5...8}" >/tmp/sitea_2.log 2>&1 &

        append(request.url)
      } else {
        append(requestPath(request.url))
      }
      append(" HTTP/1.1")
    }

  /**
   * Returns true if the request line should contain the full URL with host and port (like "GET
   * http://android.com/foo HTTP/1.1") or only the path (like "GET /foo HTTP/1.1").
   */
  private fun includeAuthorityInRequestLine(
    request: Request,
    proxyType: Proxy.Type,

				values.Set(xhttp.VersionID, r.ObjInfo.VersionID)
			}
		}
		var req *http.Request
		var reqV2 *http.Request
		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
		rec := httptest.NewRecorder()
		// construct HTTP request for copy object.
		req, err = newTestSignedRequestV4(http.MethodPut, getCopyObjectURL("", testCase.bucketName, testCase.newObjectName),

假设你的浏览器中有一个前端运行在 `http://localhost:8080`，并且它的 JavaScript 正在尝试与运行在 `http://localhost` 的后端通信（因为我们没有指定端口，浏览器会采用默认的端口 `80`）。

然后，浏览器会向 `:80` 的后端发送一个 HTTP `OPTIONS` 请求，如果后端发送适当的 headers 来授权来自这个不同源（`http://localhost:8080`）的通信，那么运行在 `:8080` 的浏览器就会允许前端中的 JavaScript 向 `:80` 的后端发送请求。

为此，`:80` 的后端必须有一个「允许的源」列表。

在这种情况下，它必须包含 `http://localhost:8080`，这样 `:8080` 的前端才能正常工作。

## 通配符 { #wildcards }

也可以使用 `"*"`（一个「通配符」）声明这个列表，表示全部都是允许的。

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"os"
	"reflect"
	"testing"
)

// Tests stripping standard ports from apiEndpoints.
func TestStripStandardPorts(t *testing.T) {
	apiEndpoints := []string{"http://127.0.0.1:9000", "http://127.0.0.2:80", "https://127.0.0.3:443"}