The original PR correctly used new URL(path, location.origin) to strip
credentials from fetch/EventSource URLs, and added credentials:'include'
to all fetch() calls. However, EventSource requires { withCredentials: true }
as a second constructor argument for cookies/auth headers to be forwarded.
Without this, SSE streaming breaks behind a reverse proxy with basic auth.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
When Hermes WebUI runs behind a reverse proxy with HTTP basic auth
(e.g. Caddy basic_auth), browsers embed credentials in the page URL.
The Fetch API and EventSource reject requests constructed from URLs
that include credentials (per Fetch spec, all modern browsers).
Fix: construct all fetch() and EventSource URLs via
new URL(path, location.origin) which strips credentials from the
base URL. Add credentials:"include" to ensure auth headers are
forwarded on each request.
