fix(mcp): auto-recover when remote browser disconnects mid-session - #40652

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:fix-1588
May 6, 2026
Merged

fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:fix-1588

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@pavelfeldman

@pavelfeldmanPavel Feldman (pavelfeldman) commented May 5, 2026

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Summary

  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.

Fixesmicrosoft/playwright-mcp#1588

@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions

github-actionsBot commented May 6, 2026

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Test results for "MCP"

17 failed
❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox
❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge
❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge
❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge
❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit

6933 passed, 1058 skipped

Merge workflow run.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit fa852c4 into microsoft:mainMay 6, 2026
15 of 18 checks passed
This was referenced May 7, 2026
Closed
Closed
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@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close

2 participants

@pavelfeldman@yury-s
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

Copy link


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Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

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Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
Merge workflow run.
@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

15 of 18 checks passed


This was referenced May 7, 2026

Closed


Closed

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@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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Successfully merging this pull request may close these issues.

CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


2 participants

@pavelfeldman@yury-s

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

Copy link


Copy Markdown

Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

Copy link


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Contributor
Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
Merge workflow run.
@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

15 of 18 checks passed


This was referenced May 7, 2026

Closed


Closed

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Already have an account?
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Reviewers

@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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Development

Successfully merging this pull request may close these issues.

CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


2 participants

@pavelfeldman@yury-s

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

Copy link


Copy Markdown

Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

Copy link


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Contributor
Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
Merge workflow run.
@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

15 of 18 checks passed


This was referenced May 7, 2026

Closed


Closed

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Already have an account?
Sign in to comment

Reviewers

@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

Assignees


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Labels


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Projects


None yet


Milestone


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Development

Successfully merging this pull request may close these issues.

CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


2 participants

@pavelfeldman@yury-s

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

Copy link


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Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

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Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
Merge workflow run.
@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

15 of 18 checks passed


This was referenced May 7, 2026

Closed


Closed

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@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


2 participants

@pavelfeldman@yury-s

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

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Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

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Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
Merge workflow run.
@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

15 of 18 checks passed


This was referenced May 7, 2026

Closed


Closed

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Reviewers

@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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Successfully merging this pull request may close these issues.

CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


2 participants

@pavelfeldman@yury-s

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

Copy link


Copy Markdown

Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

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Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
Merge workflow run.
@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

15 of 18 checks passed


This was referenced May 7, 2026

Closed


Closed

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Already have an account?
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Reviewers

@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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Development

Successfully merging this pull request may close these issues.

CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


2 participants

@pavelfeldman@yury-s

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
fix(mcp): auto-recover when remote browser disconnects mid-session - #40652
Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
May 6, 2026
Merged
fix(mcp): auto-recover when remote browser disconnects mid-session#40652
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom 
pavelfeldman:fix-1588
Conversation
@pavelfeldman
@pavelfeldmanPavel Feldman (pavelfeldman)
commented
May 5, 2026

Copy link


Copy Markdown

Member
Summary
  • Listen for browserContext close / browser disconnect inside BrowserBackend.initialize; stamp isClose: true on the next tool result so the MCP server discards the dead backend and the following call transparently reconnects — no manual browser_close needed.
  • Adds a CDP regression test that drops the endpoint mid-session and verifies the next call recovers automatically.
Fixesmicrosoft/playwright-mcp#1588
@pavelfeldman
fix(mcp): auto-recover when remote browser disconnects mid-session
9f08455
When connecting via --cdp-endpoint to a remote browser service that
enforces session timeouts (e.g. Browserless), the remote can kill the
CDP session at any moment. Today, the next tool call fails with
"Target page, context or browser has been closed" — and so do all
subsequent calls, because BrowserBackend.callTool returns the error
without signalling isClose, leaving the server holding a dead backend.
The only escape was a manual browser_close -> browser_navigate sequence,
which AI agents rarely discover on their own.
Listen for the browserContext 'close' and browser 'disconnected' events
on initialize(). When either fires, mark the backend as disconnected
and stamp isClose: true on the next tool result. The existing server.ts
path then disposes the backend and clears backendPromise, so the
following tool call transparently establishes a fresh CDP connection —
no manual browser_close needed.
Adds tests/mcp/cdp.spec.ts coverage that drops the CDP endpoint
mid-session and verifies the next call recovers automatically. The
cdpServer fixture is taught to accept a restart after disconnect.
Fixes: microsoft/playwright-mcp#1588
@github-actions
github-actionsBot
commented
May 6, 2026

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Test results for "MCP"
17 failed

❌ [firefox] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-windows-latest-firefox

❌ [msedge] › mcp/cli-session.spec.ts:130 › workspace isolation - sessions in different workspaces are isolated @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-session.spec.ts:162 › list --all lists sessions from all workspaces @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest-msedge

❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:124 › daemon show: closing page exits the process @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:164 › should capture annotations via show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:231 › should annotate via direct browser_annotate MCP call @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:264 › should annotate when context has no fixed viewport @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:301 › should cancel browser_annotate when the MCP request is aborted @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:332 › should cancel browser_annotate when the MCP client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:361 › should switch screencast to -s session on show --annotate @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:410 › should disengage annotate mode when --annotate client disconnects @mcp-windows-latest-msedge

❌ [msedge] › mcp/dashboard.spec.ts:499 › save recording streams WebM bytes to the chosen file @mcp-windows-latest-msedge

❌ [webkit] › mcp/config.ini.spec.ts:57 › ini config sets browser launch options @mcp-windows-latest-webkit
6933 passed, 1058 skipped
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@pavelfeldman
Pavel Feldman (pavelfeldman)
merged commit fa852c4
into
microsoft:mainMay 6, 2026

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This was referenced May 7, 2026

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@yury-sYury Semikhatsky (yury-s)yury-s approved these changes

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CDP endpoint: auto-recover on remote browser disconnect instead of requiring browser_close


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@pavelfeldman@yury-s