feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
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Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


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, '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

feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

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@pavelfeldman

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


Merge workflow run.

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, '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

feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

Conversation

@pavelfeldman

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Contributor

Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


Merge workflow run.

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Labels

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Successfully merging this pull request may close these issues.

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

feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

Conversation

@pavelfeldman

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Contributor

Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


Merge workflow run.

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Successfully merging this pull request may close these issues.

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

feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

Conversation

@pavelfeldman

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


Merge workflow run.

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Successfully merging this pull request may close these issues.

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

feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

Conversation

@pavelfeldman

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Choose a reason for hiding this comment

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Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Contributor

Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


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, '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('^' + ".*" + '
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feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

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@pavelfeldman

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Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


Merge workflow run.

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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

feat(cli): channel-named attach sessions and detach command - #40408

Merged
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions
Apr 24, 2026
Merged

feat(cli): channel-named attach sessions and detach command#40408
Pavel Feldman (pavelfeldman) merged 1 commit into
microsoft:mainfrom
pavelfeldman:feat-cli-attach-channel-sessions

Conversation

@pavelfeldman

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Member

Summary

  • playwright-cli attach --cdp=<channel> / --extension=<channel> now defaults the session name to the channel (e.g. chrome, msedge) when --session isn't passed, so parallel attaches no longer collide on default. URL-form --cdp=http://... still uses default.
  • New detach command, symmetric to attach: tears down an attached session's daemon without touching the external browser. Errors on sessions created via open (points the user to close).

When `playwright-cli attach --cdp=<channel>` (or `--extension=<channel>`)
uses a value from the known browser include list, default the session
name to that channel instead of `default`, so parallel attaches to
Chrome and Edge don't collide. Explicit `--session` still wins.
Also add a `detach` command symmetric to `attach` that tears down an
attached session's daemon (leaving the external browser running) and
refuses to act on sessions created via `open`.

Supported channels: `chrome`, `chrome-beta`, `chrome-dev`, `chrome-canary`, `msedge`, `msedge-beta`, `msedge-dev`, `msedge-canary`.

When `--session` is not provided, the session is named after the channel (e.g. `--cdp=msedge` creates a session called `msedge`), so parallel attaches to Chrome and Edge don't collide on `default`. Pass `--session=<name>` to override.

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Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Reading this I'd expect it to use default session name if no channel is explicitly provided, let's clarify that.

@pavelfeldman
Pavel Feldman (pavelfeldman) merged commit bc82f03 into microsoft:mainApr 24, 2026
9 of 10 checks passed
@github-actions

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Contributor

Test results for "MCP"

7 failed
❌ [firefox] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest
❌ [firefox] › mcp/launch.spec.ts:101 › isolated context @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:61 › state-load restores storage state from file @mcp-windows-latest
❌ [msedge] › mcp/cli-storage.spec.ts:100 › state-save and state-load roundtrip @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:185 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:207 › should enter annotate mode on fresh dashboard.tsx mount with -s --annotate @mcp-windows-latest
❌ [msedge] › mcp/dashboard.spec.ts:231 › should switch screencast to -s session on show --annotate @mcp-windows-latest

6670 passed, 928 skipped


Merge workflow run.

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Labels

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Projects

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Development

Successfully merging this pull request may close these issues.

2 participants

@pavelfeldman@yury-s