因此，以下皆是不同的來源：

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

即使它們都在 `localhost`，但使用了不同的通訊協定或連接埠，所以它們是不同的「來源」。

## 步驟 { #steps }

假設你的前端在瀏覽器中執行於 `http://localhost:8080`，其 JavaScript 嘗試與執行在 `http://localhost` 的後端通訊（因為未指定連接埠，瀏覽器會假設預設連接埠為 `80`）。

接著，瀏覽器會向 `:80` 的後端送出一個 HTTP `OPTIONS` 請求；若後端回傳適當的標頭，授權此不同來源（`http://localhost:8080`）的通訊，則在 `:8080` 的瀏覽器就會允許前端的 JavaScript 向 `:80` 的後端送出它的請求。

為了達成這點，`:80` 的後端必須有一份「允許的來源」清單。

authorize_url = "http://localhost:8080/auth/realms/minio/protocol/openid-connect/auth"
token_url = "http://localhost:8080/auth/realms/minio/protocol/openid-connect/token"

# callback url specified when the application was defined
callback_uri = "http://localhost:8000/oauth2/callback"

# keycloak id and secret
client_id = 'account'
client_secret = 'daaa3008-80f0-40f7-80d7-e15167531ff0'

sts_client = boto3.client(

identity_openid config_url=https://accounts.google.com/.well-known/openid-configuration client_id=843351d4-1080-11ea-aa20-271ecba3924a
```

Testing with an example
> Visit [Google Developer Console](https://console.cloud.google.com) under Project, APIs, Credentials to get your OAuth2 client credentials. Add `http://localhost:8080/oauth2/callback` as a valid OAuth2 Redirect URL.

```

FESS_TEMP_PATH=${packaging.fess.temp.dir}
FESS_LOG_PATH=${packaging.fess.log.dir}
FESS_CONF_PATH=${packaging.fess.conf.dir}
FESS_VAR_PATH=${packaging.fess.var.dir}

FESS_DICTIONARY_PATH=/var/lib/opensearch/config/

# Port
FESS_PORT=8080

# Heap Memory
FESS_HEAP_SIZE=512m

# Elasticsearch Path
SEARCH_ENGINE_HOME=/usr/share/opensearch/

# Elasticsearch URL

package main

import (
	"bytes"
	"encoding/json"
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"
)

var port int

func init() {
	flag.IntVar(&port, "port", 8080, "Port to listen on")
}

func mainHandler(w http.ResponseWriter, r *http.Request) {
	body, err := io.ReadAll(r.Body)
	defer r.Body.Close()
	if err != nil {
		log.Printf("Error reading request body: %v", err)

)

// Help template inputs for all lambda targets
var (
	HelpWebhook = config.HelpKVS{
		config.HelpKV{
			Key:         target.WebhookEndpoint,
			Description: "webhook server endpoint e.g. http://localhost:8080/minio/lambda",
			Type:        "url",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         target.WebhookAuthToken,
			Description: "opaque string or JWT authorization token",
			Optional:    true,

    }

    public void test_clear() {
        WebAuthPager webAuthPager = new WebAuthPager();
        webAuthPager.id = "testId";
        webAuthPager.port = "8080";
        webAuthPager.username = "testUser";
        webAuthPager.webConfigId = "webConfig1";
        webAuthPager.versionNo = "1";
        webAuthPager.setAllRecordCount(100);
        webAuthPager.setAllPageCount(10);

     *
     * @return the port number (default 8080 if not specified)
     */
    protected static int getPort() {
        final String value = System.getProperty(FESS_PORT);
        if (value != null) {
            return Integer.parseInt(value);
        }
        return 8080;
    }

    /**
     * Gets the context path for the web application from system properties.

   org.codelibs.fess.FessBoot
   ```

2. **Access the Admin UI:**
   ```
   http://localhost:8080/admin/
   ```

3. **Test language selection:**
   - Check if your language appears in the language dropdown
   - Force your language by adding URL parameter: `?browser_lang=[locale]`
   - Example: `http://localhost:8080/admin/?browser_lang=sv`

4. **Verify translations:**
   - Navigate through different admin pages

		{"http://:8080/path", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: empty host name")},
		{"http://server:/path", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: invalid port number")},
		{"https://93.184.216.34:808080/path", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: port number must be between 1 to 65535")},