Nextjs sitemap header error

I am generating my sitemap using this package: https://github.com/iamvishnusankar/next-sitemap I have following:

const setHeader = async (context: GetServerSidePropsContext, chunk: { loc: string }[]) => {
  // cache it for 1 day
  context.res.setHeader('Cache-Control', 's-maxage=86400, stale-while-revalidate');
  context.res.setHeader('Content-Type', 'text/xml');

  const sitemaps = await getServerSideSitemap(context, chunk);

  context.res.write(sitemaps);
  context.res.end();

  return { props: {} };
};

const setHeader = async (context: GetServerSidePropsContext, chunk: { loc: string }[]) => {
  // cache it for 1 day
  context.res.setHeader('Cache-Control', 's-maxage=86400, stale-while-revalidate');
  context.res.setHeader('Content-Type', 'text/xml');

  const sitemaps = await getServerSideSitemap(context, chunk);

  context.res.write(sitemaps);
  context.res.end();

  return { props: {} };
};

But right now I am getting this error:

error - Error: Cannot set headers after they are sent to the client

code: 'ERR_HTTP_HEADERS_SENT',
page: '/sitemap/[sitemapId]'

error - Error: Cannot set headers after they are sent to the client

code: 'ERR_HTTP_HEADERS_SENT',
page: '/sitemap/[sitemapId]'

GitHub

GitHub - iamvishnusankar/next-sitemap: Sitemap generator for next.j...

Sitemap generator for next.js. Generate sitemap(s) and robots.txt for all static/pre-rendered/dynamic/server-side pages. - GitHub - iamvishnusankar/next-sitemap: Sitemap generator for next.js. Gene...

4 Replies

utdev•2y ago

Not sure what I am doing wrong, but I actually remember this working a couple of weeks ago 😕

Unknown User•2y ago

Message Not Public

utdev•2y ago

@Folded-Code I think I managed to fix it, what are your issues right now? @Folded-Code You can DM me if you like to later on

Unknown User•2y ago

Message Not Public

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Nextjs sitemap header error