# Streaming Not Working When Proxied

## Issue

Streaming with the AI SDK doesn't work in local development environment, or deployed in some proxy environments.
Instead of streaming, only the full response is returned after a while.

## Cause

The causes of this issue are caused by the proxy middleware.

If the middleware is configured to compress the response, it will cause the streaming to fail.

## Solution

You can try the following, the solution only affects the streaming API:

- add `'Content-Encoding': 'none'` headers

  ```tsx
  return result.toDataStreamResponse({
    headers: {
      'Content-Encoding': 'none',
    },
  });
  ```


## Navigation

- [Azure OpenAI Slow to Stream](/v4/docs/troubleshooting/azure-stream-slow)
- [Client-Side Function Calls Not Invoked](/v4/docs/troubleshooting/client-side-function-calls-not-invoked)
- [Server Actions in Client Components](/v4/docs/troubleshooting/server-actions-in-client-components)
- [useChat/useCompletion stream output contains 0:... instead of text](/v4/docs/troubleshooting/strange-stream-output)
- [Streamable UI Errors](/v4/docs/troubleshooting/streamable-ui-errors)
- [Tool Invocation Missing Result Error](/v4/docs/troubleshooting/tool-invocation-missing-result)
- [Streaming Not Working When Deployed](/v4/docs/troubleshooting/streaming-not-working-when-deployed)
- [Streaming Not Working When Proxied](/v4/docs/troubleshooting/streaming-not-working-when-proxied)
- [Getting Timeouts When Deploying on Vercel](/v4/docs/troubleshooting/timeout-on-vercel)
- [Unclosed Streams](/v4/docs/troubleshooting/unclosed-streams)
- [useChat Failed to Parse Stream](/v4/docs/troubleshooting/use-chat-failed-to-parse-stream)
- [Server Action Plain Objects Error](/v4/docs/troubleshooting/client-stream-error)
- [useChat No Response with maxSteps](/v4/docs/troubleshooting/use-chat-tools-no-response)
- [useChat "An error occurred"](/v4/docs/troubleshooting/use-chat-an-error-occurred)
- [streamText fails silently](/v4/docs/troubleshooting/stream-text-not-working)
- [NaN token counts when using streamText with OpenAI models](/v4/docs/troubleshooting/nan-token-counts-openai-streaming)
- [Model is not assignable to type "LanguageModelV1"](/v4/docs/troubleshooting/model-is-not-assignable-to-type)
- [TypeScript error "Cannot find namespace 'JSX'"](/v4/docs/troubleshooting/typescript-cannot-find-namespace-jsx)
- [React error "Maximum update depth exceeded"](/v4/docs/troubleshooting/react-maximum-update-depth-exceeded)
- [Jest: cannot find module 'ai/rsc'](/v4/docs/troubleshooting/jest-cannot-find-module-ai-rsc)
- [Schema must be JSON Schema of type object error](/v4/docs/troubleshooting/zod-v4-json-schema-type-error)


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