不管是overrideFetch还是createFetch，headers选项设置不起作用

[happyybm]

不管是overrideFetch还是createFetch，把headers设置成 application/x-www-form-urlencoded 都不起作用，只有写在fetch的第二个参数中有用，且content-type属性必需是小驼峰contentType才行

以下代码设置后是不起作用的：

export const fetch = createFetch(
  {
    /** 'prefix' 前缀，统一设置 url 前缀，默认是 '' */
    // prefix: 'https://rap2api.taobao.org/app/mock/3402',
    fetchOption: {
      /** 全局配置请求 content-type，默认是 'application/json' */
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
      },

      credentials: 'same-origin',
    },
  },
  { fetchType: FetchType.AUTO },
);

以下代码设置是可以的:

fetch['POST/api/detail'](
      { uid: 1 },
      {
        contentType: 'application/x-www-form-urlencoded',
      }
)

[Ataris]

https://github.com/thx/rapper/blob/master/src/runtime/commonLib.ts#L155-L172

  extra = extra || {};
  let urlWithParams = url;
  const init: RequestInit = { ...(fetchOption || {}), method };
  if (method === 'GET') {
    const qs = stringifyQueryString(params, extra.queryStringFn);
    urlWithParams = qs ? url + '?' + qs : url;
  } else if (
    ['POST', 'DELETE', 'PUT'].includes(method) &&
    extra.contentType === 'application/x-www-form-urlencoded'
  ) {
    init.body = stringifyQueryString(params, extra.queryStringFn);
  } else if (
    ['POST', 'DELETE', 'PUT'].includes(method) &&
    extra.contentType === 'multipart/form-data'
  ) {
    const formdata = new FormData();
    params &&
      Object.keys(params).forEach(key => {
        formdata.append(key, params[key]);
      });
    init.body = formdata;
  } else {
    init.body = typeof params === 'object' ? JSON.stringify(params) : params;
  }

你以为他会给你从object转URLSearchParams，其实并没有 😢
慢慢等作者更新吧

或者（不还是没有

const querystring = require('querystring');
fetch['POST/api/detail'](querystring.stringify({ uid: 1 }) as unknown as any);

[墨尘]

最新版 v1.1.1 已修复此问题，感谢提出bug