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[PR #6113] fix: correct Content-Type headers for static assets on app.opencode.ai #11735

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opened 2026-02-16 18:16:40 -05:00 by yindo · 0 comments
yindo commented 2026-02-16 18:16:40 -05:00
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Original Pull Request: https://github.com/anomalyco/opencode/pull/6113

State: closed
Merged: Yes

Problem

When running opencode web and opening the URL (e.g., http://127.0.0.1:63308/), users see the message:

You need to enable JavaScript to run this app.

This occurs even when JavaScript is enabled in the browser. The root cause is that the Cloudflare Pages deployment serving app.opencode.ai returns JavaScript and CSS files with incorrect Content-Type: text/html headers instead of the correct MIME types (application/javascript and text/css).

Browsers refuse to execute JavaScript files served with incorrect Content-Type headers as a security measure, causing the <noscript> fallback message to display.

Solution

Add a _headers file in packages/app/public/ to instruct Cloudflare Pages to serve static assets with correct MIME types. Cloudflare Pages reads this configuration file during deployment and applies the specified Content-Type headers to matching file patterns.

Testing

After deployment, verify that:

  1. https://app.opencode.ai/assets/*.js returns Content-Type: application/javascript
  2. https://app.opencode.ai/assets/*.css returns Content-Type: text/css
  3. Running opencode web and opening the browser shows the UI instead of the noscript message

Related

This is a bug fix for the web interface deployment configuration.

**Original Pull Request:** https://github.com/anomalyco/opencode/pull/6113 **State:** closed **Merged:** Yes --- ## Problem When running `opencode web` and opening the URL (e.g., http://127.0.0.1:63308/), users see the message: > You need to enable JavaScript to run this app. This occurs even when JavaScript is enabled in the browser. The root cause is that the Cloudflare Pages deployment serving `app.opencode.ai` returns JavaScript and CSS files with incorrect `Content-Type: text/html` headers instead of the correct MIME types (`application/javascript` and `text/css`). Browsers refuse to execute JavaScript files served with incorrect Content-Type headers as a security measure, causing the `<noscript>` fallback message to display. ## Solution Add a `_headers` file in `packages/app/public/` to instruct Cloudflare Pages to serve static assets with correct MIME types. Cloudflare Pages reads this configuration file during deployment and applies the specified Content-Type headers to matching file patterns. ## Testing After deployment, verify that: 1. `https://app.opencode.ai/assets/*.js` returns `Content-Type: application/javascript` 2. `https://app.opencode.ai/assets/*.css` returns `Content-Type: text/css` 3. Running `opencode web` and opening the browser shows the UI instead of the noscript message ## Related This is a bug fix for the web interface deployment configuration.
yindo added the pull-request label 2026-02-16 18:16:40 -05:00
yindo closed this issue 2026-02-16 18:16:40 -05:00
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Reference: anomalyco/opencode#11735
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