updated feature: Unframed display mode for Isolated Web Apps

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Jul 1, 2026, 8:57:52 AMJul 1
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 Updated feature entry:
Unframed display mode for Isolated Web Apps
Updates made by edm...@google.com:
  • name:
    Old: Unframed mode (f.k.a. borderless)
    New: Unframed display mode for Isolated Web Apps

  • summary:
    Old: Unframed mode extends the Isolated Web App (IWA) client area to encompass the entire window, including the regions normally reserved for the title bar and system window controls. This provides developers with complete control over the application's visual layout, enabling bespoke, immersive experiences and custom window branding. In this mode, the application is responsible for rendering all visual elements and handling user input across the entire window surface.
    New: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. This mode requires the Window Management permission and dynamically restores the window frame if the browser needs to display security warnings or prompts.

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Jul 1, 2026, 9:04:57 AMJul 1
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Updates made by mho...@google.com:
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Jul 1, 2026, 9:37:55 AMJul 1
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Updates made by edm...@google.com:
  • summary:
    Old: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. This mode requires the Window Management permission and dynamically restores the window frame if the browser needs to display security warnings or prompts.
    New: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. This mode requires the Window Management permission and dynamically restores the window frame if the browser needs to display security warnings or prompts. Administrators can manage with the existing policies for the window-management permission: * DefaultWindowManagementSetting: Configures the default behavior for the Window Management permission. * WindowManagementAllowedForUrls: Explicitly grants the permission to specified IWA origins, allowing them to enter unframed mode without any user interaction. * WindowManagementBlockedForUrls: Blocks the permission for specified origins, forcing Chrome to fallback from unframed to other display modes.

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Jul 1, 2026, 9:42:04 AMJul 1
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Updates made by edm...@google.com:
  • summary:
    Old: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. This mode requires the Window Management permission and dynamically restores the window frame if the browser needs to display security warnings or prompts. Administrators can manage with the existing policies for the window-management permission: * DefaultWindowManagementSetting: Configures the default behavior for the Window Management permission. * WindowManagementAllowedForUrls: Explicitly grants the permission to specified IWA origins, allowing them to enter unframed mode without any user interaction. * WindowManagementBlockedForUrls: Blocks the permission for specified origins, forcing Chrome to fallback from unframed to other display modes.
    New: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. Administrators can manage this feature with the existing policies for the window-management permission: * DefaultWindowManagementSetting: Configures the default state for the window-management permission for all apps. The policies below can override this default. * WindowManagementAllowedForUrls: Grants the permission to specified IWA origins, allowing them to enter unframed mode without any user interaction. * WindowManagementBlockedForUrls: Blocks the permission for specified origins, forcing Chrome to fallback from unframed to other display modes the app uses.

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Jul 1, 2026, 11:01:25 AMJul 1
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Updates made by rachel...@google.com:
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Jul 1, 2026, 2:51:06 PMJul 1
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Updates made by mho...@google.com:
  • rollout_platforms:
    Old: []
    New: ChromeOS

  • rollout_stage_plan:
    Old: None
    New: 0

  • rollout_milestone:
    Old: None
    New: 152

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Chromestatus

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Jul 1, 2026, 2:51:49 PMJul 1
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Updates made by mho...@google.com:
  • Old: needs_work
    New: approved

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Jul 2, 2026, 6:37:51 AMJul 2
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Updates made by edm...@google.com:
  • blink_components:
    Old: ['UI>Browser>WebAppInstalls>Desktop']
    New: UI>Browser>WebAppInstalls>Isolated

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Chromestatus

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Jul 3, 2026, 3:25:14 PMJul 3
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Chrome Platform Status
Updates made by mho...@google.com:
  • is_releasenotes_content_reviewed:
    Old: False
    New: True

  • summary:
    Old: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. Administrators can manage this feature with the existing policies for the window-management permission: * DefaultWindowManagementSetting: Configures the default state for the window-management permission for all apps. The policies below can override this default. * WindowManagementAllowedForUrls: Grants the permission to specified IWA origins, allowing them to enter unframed mode without any user interaction. * WindowManagementBlockedForUrls: Blocks the permission for specified origins, forcing Chrome to fallback from unframed to other display modes the app uses.
    New: Extends the Isolated Web App (IWA) client area on ChromeOS to encompass the entire window by removing the standard title bar and window controls. Administrators can manage this feature with the existing policies for the window-management permission: \* [DefaultWindowManagementSetting](https://chromeenterprise.google/policies/#DefaultWindowManagementSetting): Configures the default state for the window-management permission for all apps. The policies below can override this default. \* [WindowManagementAllowedForUrls](https://chromeenterprise.google/policies/#WindowManagementAllowedForUrls): Grants the permission to specified IWA origins, allowing them to enter unframed mode without any user interaction. \* [WindowManagementBlockedForUrls](https://chromeenterprise.google/policies/#WindowManagementBlockedForUrls): Blocks the permission for specified origins, forcing Chrome to fallback from unframed to other display modes the app uses.

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Jul 6, 2026, 6:47:32 AMJul 6
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Updates made by siobhan...@google.com:
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Jul 6, 2026, 6:50:30 AMJul 6
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Jul 7, 2026, 9:20:36 AMJul 7
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Jul 7, 2026, 11:46:40 AMJul 7
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  • Old: no_response
    New: needs_work
    Note: Feature owners must press the "Re-request review" button after requested changes have been completed.
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Jul 9, 2026, 4:03:40 AMJul 9
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Updates made by pfa...@google.com:
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Jul 13, 2026, 2:42:57 PM (12 days ago) Jul 13
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Updates made by edm...@google.com:
  • all_platforms_descr:
    Old: This feature is only supported in ChromeOS because IWAs are only available in ChromeOS.
    New: This feature is only supported in ChromeOS. The title bar includes privacy-relevant information. In ChromeOS we can make them available in other parts of the OS UI, but we can't do the same in other platforms.

  • wpt_descr:
    Old: N/A. There will be browser tests and unit tests for relevant parts.
    New: N/A. There are browser tests and unit tests for relevant parts.

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Jul 13, 2026, 4:55:48 PM (12 days ago) Jul 13
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Updates made by elmira...@google.com:
  • rollout_platforms:
    Old: []
    New: ChromeOS

  • rollout_stage_plan:
    Old: None
    New: 0

  • rollout_milestone:
    Old: None
    New: 152

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Jul 15, 2026, 10:09:54 AM (10 days ago) Jul 15
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Updates made by n...@google.com:
  • Old: needs_work
    New: approved

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Jul 15, 2026, 10:11:24 AM (10 days ago) Jul 15
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Updates made by edm...@google.com:
  • safari_views:
    Old: No signal
    New: N/A

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Jul 15, 2026, 10:14:54 AM (10 days ago) Jul 15
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Updates made by edm...@google.com:
  • finch_name:
    Old: CrosIsolatedWebAppSetShapeAllowlist
    New: UnframedIwa

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Jul 15, 2026, 10:19:48 AM (10 days ago) Jul 15
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Updates made by edm...@google.com:
  • adoption_expectation:
    Old: Feature is used by two specific partners within 12 months of launch in Chrome.
    New: Feature is used by at least two partners within 12 months of launch in Chrome.

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Jul 15, 2026, 10:23:14 AM (10 days ago) Jul 15
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Updates made by edm...@google.com:
  • wpt_descr:
    Old: N/A. There are browser tests and unit tests for relevant parts.
    New: There are Web Platform Tests to verify the display mode exists. Browser tests and unit tests for verify the feature in more detail.

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Chromestatus

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Jul 15, 2026, 2:25:02 PM (10 days ago) Jul 15
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Updates made by edm...@google.com:
  • wpt_descr:
    Old: There are Web Platform Tests to verify the display mode exists. Browser tests and unit tests for verify the feature in more detail.
    New: There are Web Platform Tests to verify the display mode exists. Browser tests and unit tests verify the feature in more detail.

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Chromestatus

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Jul 16, 2026, 3:06:48 AM (10 days ago) Jul 16
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Updates made by mike...@chromium.org:
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Jul 20, 2026, 2:40:10 PM (5 days ago) Jul 20
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Updates made by sligh...@chromium.org:
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