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class ShadowProxy {
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  static async handleRequest(req, env, ctx) {
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    try {
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      // ... 原有代码
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      // 复刻请求头
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      const req2 = new Request(req.url, {
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        headers: req.headers,
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        method: req.method,
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        body: req.body,
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        redirect: "follow",
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      });
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      // 处理特殊头部规则
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      const specialCases = {
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        "*": {
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          Origin: "DELETE",
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          Referer: "DELETE",
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        },
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      };
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      const rules = specialCases[url.hostname] || specialCases["*"];
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      for (const [key, value] of Object.entries(rules)) {
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        if (value === "DELETE") {
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          req2.headers.delete(key);
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        } else if (value !== "KEEP") {
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          req2.headers.set(key, value);
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        }
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      }
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      const response = await proxy.connect(req2, dstUrl);
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      // 强制允许跨域
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      const modifiedResponse = new Response(response.body, response);
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      modifiedResponse.headers.set("Access-Control-Allow-Origin", "*");
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      return modifiedResponse;
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    } catch (error) {
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      console.error("ShadowProxy error:", error);
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      return new Response(`Error: ${error.message}`, { status: 500 });
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    }
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  }
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}