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[GH-ISSUE #111] bug: Browser Tools "no close frame received or sent" after first use #49
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Originally created by @JKGeovision on GitHub (Jul 8, 2026).
Original GitHub issue: https://github.com/open-webui/computer/issues/111
Hello,
I discovered a bug with the browser tools (browser_navigate, browser_snapshot, browser_screenshot, etc.). After the first successful use of any browser tool, all subsequent calls fail with the error:
Error executing browser_navigate: no close frame received or sentSteps to reproduce:
The issue appears to be in the cptr browser client. The WebSocket connection to the CDP server is not closed properly after the first use. The CDP server sends no "close frame", which causes a keepalive ping timeout.
Thank you again for your work and I wish you all a great day,
Joshua Krimmer
@owui-terminator[bot] commented on GitHub (Jul 8, 2026):
⚠️ Missing Issue Title Prefix
@JKGeovision, your issue title is missing a categorising prefix (e.g.
bug:,feat:,docs:).Please update the title to lead with one of:
Example:
bug: Login fails when the password contains special characters@tjbck commented on GitHub (Jul 9, 2026):
Should be addressed!
@JKGeovision commented on GitHub (Jul 10, 2026):
I tested the changes and the issue is fixed. Repeated browser tool calls now work 🎆️
Thanks again for your work and have a great day,
Joshua Krimmer