nuxt/dist/core/runtime/nitro/utils/error.js

Nuxt is a free and open-source framework with an intuitive and extendable way to create type-safe, performant and production-grade full-stack web applications and websites with Vue.js.

import { getRequestHeader } from "h3";
export function isJsonRequest(event) {
  if (hasReqHeader(event, "accept", "text/html")) {
    return false;
  }
  return hasReqHeader(event, "accept", "application/json") || hasReqHeader(event, "user-agent", "curl/") || hasReqHeader(event, "user-agent", "httpie/") || hasReqHeader(event, "sec-fetch-mode", "cors") || event.path.startsWith("/api/") || event.path.endsWith(".json");
}
export function hasReqHeader(event, name, includes) {
  const value = getRequestHeader(event, name);
  return value && typeof value === "string" && value.toLowerCase().includes(includes);
}