How to Fix WebSocket "handshake failed" in Skippr

April 2026

WebSocket handshake failures usually mean the endpoint, headers, or URL scheme are wrong. Here is the clean Skippr checklist.

Short Answer

A WebSocket handshake failed error means Skippr reached the endpoint but could not complete the protocol upgrade. The usual causes are the wrong URL scheme, missing headers, or missing auth.

Verify the exact endpoint, required headers, and whether the service expects ws:// or wss://.

Why This Error Happens

Handshake failures happen before the stream starts, so they are usually easier to isolate than downstream pipeline issues.

• Using ws:// when the endpoint requires wss://.
• Missing authentication or custom headers.
• Proxy or gateway behavior that interrupts the WebSocket upgrade.

How to Fix It with Skippr

Treat the WebSocket source as a strict transport contract. Once the endpoint upgrades correctly, Skippr can take over the ingestion path into the warehouse like any other source.

• Confirm whether the endpoint expects ws:// or wss://.
• Add any required headers or auth credentials.
• Check proxy or firewall behavior if the upgrade fails before authentication.
• Reconnect the WebSocket source and retry the pipeline.

When Skippr Is the Better Path

For event-style sources, Skippr keeps transport setup and warehouse delivery in one project. You are not fixing the WebSocket stream in one place and reinventing the rest somewhere else.

Once the handshake works, the same workflow can keep pushing into bronze and downstream modeled layers.