TypeError: fetch failed] { cause: [Error: AggregateError] }

Steps to reproduce

const sql = neon(process.env.POSTGRES_URL_NON_POOLING);
return await sql(query, params);

Expected result

Return rows

Actual result

Error

Environment

Vercel Edge Runtime

Logs, links

Work with Kysely and Pool, but this does not work:

const sql = neon(process.env.POSTGRES_URL_NON_POOLING);
return await sql(query, params);

[NeonDbError: Error connecting to database: fetch failed] {
  name: 'NeonDbError',
  severity: undefined,
  code: undefined,
  detail: undefined,
  hint: undefined,
  position: undefined,
  internalPosition: undefined,
  internalQuery: undefined,
  where: undefined,
  schema: undefined,
  table: undefined,
  column: undefined,
  dataType: undefined,
  constraint: undefined,
  file: undefined,
  line: undefined,
  routine: undefined,
  sourceError: [TypeError: fetch failed] { cause: [Error: AggregateError] }
}

Start with the reproduction snippet in the issue under the Vercel Edge Runtime, using Neon with Kysely and Pool, and investigate the reported fetch failed AggregateError. Done means the query returns rows instead of producing the NeonDbError shown in the logs.