/Wiki/sources/honojs__hono/2026/https-hono-dev-llms-full-txt-origin-string-strin-3f4dc48ca4f2-origin-string-string-function-s0144-c0000.md

origin: `string` | `string[]` | `Function` - hono-docs

origin: string | string[] | Function Source evidence: /Sources/raw/honojs hono/honojs hono.md Canonical citation: https://hono.dev/llms full.txt origin strin...

origin: string | string[] | Function

Source evidence: /Sources/raw/honojshono/honojshono.md Canonical citation: https://hono.dev/llms-full.txt#origin-string-string-function

Summary

Specify allowed origins for CSRF protection. - string: Single allowed origin (e.g., 'https://example.com') - string[]: Array of allowed origins - Function: Custom handler `(origin: string, context: Context) => boolean...

Content

Specify allowed origins for CSRF protection.

  • string: Single allowed origin (e.g., 'https://example.com')
  • string[]: Array of allowed origins
  • Function: Custom handler (origin: string, context: Context) => boolean for flexible origin validation and bypass logic

Default: Only same origin as the request URL

The function handler receives the request's Origin header value and the request context, allowing for dynamic validation based on request properties like path, headers, or other context data.

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