[Bug]: Gateway 2026.2.26: API routes return HTML instead of JSON (routing regression) #30295
Description
Summary
In OpenClaw 2026.2.26, all /api/* endpoints return the SPA HTML page instead of JSON responses, breaking the browser UI and Discord integration.
Version: 2026.2.26 (also tested 2026.2.15 — works fine)
Steps to reproduce
Expected behavior
[{"sessionKey": "...", "model": "..."}]
Actual behavior
<!doctype html>
<title>OpenClaw Control</title> ...OpenClaw version
2026.2.26
Operating system
Win 11
Install method
npm
Logs, screenshots, and evidence
In browser console (F12 → Console), run this and paste the exact output:
fetch('http://127.0.0.1:18789/api/sessions', {
headers: { 'Authorization': 'Bearer YOUR_TOKEN_HERE' }
})
.then(r => r.text().then(txt => ({ status: r.status, body: txt })))
.catch(err => ({ error: err.toString() }))
.then(data => console.log(JSON.stringify(data, null, 2)))
(Replace YOUR_TOKEN_HERE with the auth token from openclaw.json — it's the gateway.auth.token value)
This will show me exactly why the fetch is failing (401, 403, 500, network error, etc.).
Joker#603 — 10:46 PM
{
"status": 200,
"body": "<!doctype html>\n<html lang="en">\n <head>\n <meta charset="UTF-8" />\n <meta name="viewport" content="width=device-width, initial-scale=1.0" />\n <title>OpenClaw Control</title>\n <meta name="color-scheme" content="dark light" />\n <link rel="icon" type="image/svg+xml" href="./favicon.svg" />\n <link rel="icon" type="image/png" sizes="32x32" href="./favicon-32.png" />\n <link rel="apple-touch-icon" sizes="180x180" href="./apple-touch-icon.png" />\n <script type="module" crossorigin src="./assets/index-C_C6XOMD.js"></script>\n <link rel="stylesheet" crossorigin href="./assets/index-CM7kTShz.css">\n </head>\n <body>\n <openclaw-app></openclaw-app>\n </body>\n</html>\n"
}
The API endpoint is returning HTML (the control UI page) instead of JSON.Impact and severity
Prevented me from connecting to ollama local qwen models.
Additional information
No response