fix(preview): failed tabs no longer sit as a blank floating panel

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

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[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

Important

Review skipped

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_{Comment @coderabbitai help to get the list of available commands.}

[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

Important

Review skipped

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_{Comment @coderabbitai help to get the list of available commands.}

[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on this repository. Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

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Plan: Team

Run ID: 895e3cbd-6d8b-463d-8bdd-9959f0ad3c29

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Use the checkbox below for a quick retry:

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---

_{Comment @coderabbitai help to get the list of available commands.}

[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

Important

Review skipped

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Review profile: CHILL

Plan: Team

Run ID: 895e3cbd-6d8b-463d-8bdd-9959f0ad3c29

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_{Comment @coderabbitai help to get the list of available commands.}

[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on this repository. Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Team

Run ID: 895e3cbd-6d8b-463d-8bdd-9959f0ad3c29

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

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Warning

Your free Security trial is over. An organization admin can upgrade to Advanced for continuous pull request security review or dismiss this notice.

---

_{Comment @coderabbitai help to get the list of available commands.}

[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

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[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}

[gbarros-dev]

A dead preview URL still counted as a live tab. The floating mini-player stayed a white rectangle, and preview_status told the agent the page was healthy.

The mini-player now shows Retry and Close on a failed load. Status reports available: false with the URL the agent actually tried, not chrome-error://.

Closes#7212.

Implemented with Grok 4.6 through Grok CLI.

---

Note

Medium Risk
Changes preview automation readiness, IPC status shape, and agent-facing preview_status semantics; mistakes could block navigate/retry or misreport tab health, but behavior is heavily tested.

Overview
Failed preview navigations no longer look like a healthy blank tab: automation status reports available: false with the requested URL and error text (not chrome-error://), and desktop status adds an optional attached flag so callers can tell a live-but-failed guest from a destroyed one.

The floating mini-player shows a Retry / Close overlay on LoadFailed, hides the webview surface, and wires Retry to previewBridge.refresh. Shared applyPreviewLoadFailureToAutomationStatus keeps preview_status honest while preferLiveAvailability avoids stale failure snapshots during an in-flight retry.

Automation overlay and navigation readiness waits now key off attachment (with overlay fallback for older hosts): they settle when a guest is attached but failed, and fail fast when attached === false instead of timing out or treating a dead guest as a finished load.

^{Reviewed by Cursor Bugbot for commit 611eb1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix failed preview tabs to show unreachable overlay instead of blank panel

• Adds PreviewMiniPlayerUnreachable component that renders the parsed host or raw URL, friendly error text, and Retry/Close actions for failed navigations in the floating mini-player
• Adds an optional attached boolean to DesktopPreviewAutomationStatusSchema so the main process can report whether the live guest process is still attached, independent of the registered web contents identifier
• Updates PreviewManager.automationStatus to preserve failure description and requested URL for failed navigations, and report detached for destroyed or missing web contents instead of returning a generic empty status
• Updates waitForNavigationReadiness to settle for an attached guest after a failed navigation and reject detached guests with PreviewAutomationTargetUnavailableError; falls back to overlay snapshot for older hosts without the attached field
• Blocks opening picture-in-picture for failed previews while still allowing closing an existing picture-in-picture window
• Behavioral Change: automation status payloads now prefer live available or loading state over a stale LoadFailed snapshot; older desktop hosts without the attached field still work via overlay fallback

^{Macroscope summarized 611eb1d.}

[coderabbitai]

Important

Review skipped

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Configuration used: Repository UI

Review profile: CHILL

Plan: Team

Run ID: 895e3cbd-6d8b-463d-8bdd-9959f0ad3c29

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---

_{Comment @coderabbitai help to get the list of available commands.}

[macroscopeapp]

One finding: the new mini-player overlay's buttons inherit pointer-events: none from the mini-player root, so Retry/Close can't be clicked.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This change adds a new failed-preview recovery UI and modifies automation readiness and status semantics across the desktop process, web renderer, and IPC contract. Although the scope is focused and tested, the cross-layer runtime behavior and new user-facing capability merit human review.

^{You can add or adjust custom eligibility rules. Learn more.}

Dismissing prior approval to re-evaluate 20612c1

[gbarros-dev]

Rebased onto current main after #7082 / tooltip lint. Conflict was only in ThreadPreviewMiniPlayer.tsx; kept the styled tooltips and the failed-tab PiP disable (close stays available if already popped out).

[macroscopeapp]

One finding on the new mini-player unreachable overlay: the host line can overflow the floating player because nothing constrains or truncates it.

^{Posted via Macroscope — UI Consistency}

Dismissing prior approval to re-evaluate 83b931f

[Lermatroid]

looking forward to this getting merged 👀

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 16d209a. Configure here.}