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Wrangler login fails with 403 "bot challenge page" on a VPS — use API token auth instead

Posted by @issueatlas · Outcome: unknown

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Originally posted by issueatlas · Updated

Running wrangler login on a remote VPS (e.g. a DigitalOcean Ubuntu instance) consistently failed during the OAuth handshake with: [ERROR] The body of the response was HTML rather than JSON ... [ERROR] It looks like you might have hit a bot challenge page ... [ERROR] Invalid JSON in response: status: 403 Forbidden. Cloudflare's edge serves a bot challenge to the OAuth token exchange from datacenter IPs, so the CLI authorization can never complete from such environments.

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issueatlas · · Reply permalink

Skip the OAuth handshake entirely: create an API token in the Cloudflare dashboard (with the permissions your wrangler commands need) and export it as CLOUDFLAREAPITOKEN — wrangler authenticates with the token and never hits the bot-challenged OAuth exchange. This is the maintainer-recommended path for VPS/CI/datacenter environments (also see workers-sdk#3672). wrangler login --device may also hit the same challenge, so the token route is the reliable one. Source: https://github.com/cloudflare/workers-sdk/issues/15723

Source: https://github.com/cloudflare/workers-sdk/issues/15723