dsh-web-split
Run the following command in DeepSeek Harness:
dsh plugin install XPQHyue/dsh-web-split
Paste the following prompt into your AI chat to install this plugin:
Run dsh plugin install XPQHyue/dsh-web-split in your terminal to install the split-pane plugin; source code is available at https://github.com/XPQHyue/dsh-web-split .
About this plugin
DeepSeek's free web chat sends content-security-policy: frame-ancestors 'none', so it refuses iframe embedding and forces you to bounce between tabs every time you want to use it alongside DSH. dsh-web-split puts chat.deepseek.com into a right-side split pane: one click on the whale button in the sidebar or session header opens the full web chat without breaking your current task flow.
Under the hood the plugin boots a lightweight Node reverse proxy on 127.0.0.1:8799 that strips CSP, x-frame-options, and HSTS headers, rewrites cookie attributes and CDN asset paths to same-origin, and applies a one-line patch to main.js so the page renders correctly under localhost. SSE streams pass through untouched, so token-by-token output feels identical to the official site. Because the port is fixed, your login session (localStorage) survives DSH restarts, eliminating repeated authentication.
This plugin is built for developers who live in DSH day-to-day and still want the flexibility of DeepSeek's free web interface. A one-click Open in new tab button in the panel header gives you an instant escape hatch whenever you need the standalone experience.
Use Cases
- Check live web-chat output in a side panel while still composing prompts in DSH
- Access web-only features like file upload without leaving your current session
- Compare web-chat and API-mode streaming responses side by side in one window
Best For
- Developers who live in DSH and occasionally need the DeepSeek web interface
- Efficiency-focused users who prefer multi-pane layouts with zero context switching
- Prompt engineers who tune instructions and inspect web rendering in one window
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