Function isInternalFileUrl

apps/sim/lib/uploads/utils/file-utils.ts:556–569

(fileUrl: string)

 * would break self-hosted and multi-domain deployments.
 */
export function isInternalFileUrl(fileUrl: string): boolean {
  if (typeof fileUrl !== 'string') {
    return false
  }

  let path = fileUrl
  const scheme = /^[a-z][a-z0-9+.-]*:\/\/[^/?#]*/i.exec(path)
  if (scheme) {
    path = path.slice(scheme[0].length)
  }
  path = path.split(/[?#]/, 1)[0]

  return path.startsWith('/api/files/serve/')
}

/**
 * Infer storage context from a file key using its prefix.