Closing a tab in browser window also closes an app window

[derekantrican]

Description

Closing a tab in a normal browser window will also close an app browser window if it is open

Screenshot:

Steps to Reproduce

1. Open Brave along with a couple tabs
2. Start a command similar to the following: C:\Program Files (x86)\BraveSoftware\Brave-Browser\Application\brave.exe --app=https://hulu.com
3. Close a tab in the first window
4. Notice that the app window also closes

Expected result:

App window should stay open

Reproduces how often:

Easily reproduced

Brave version (brave://version info)

Brave	1.21.74 Chromium: 89.0.4389.72 (Official Build) (64-bit)
Revision	3f345f156bfd157bd1bea06310e55f3fb2490359-refs/branch-heads/4389@{#1393}
OS	Windows 10 OS Version 1909 (Build 18363.1440)
JavaScript	V8 8.9.255.20
User Agent	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Command Line	"C:\Program Files (x86)\BraveSoftware\Brave-Browser\Application\brave.exe" --no-startup-window /prefetch:5 --enable-dom-distiller --disable-domain-reliability --no-pings --extension-content-verification=enforce_strict --extensions-install-verification=enforce --origin-trial-public-key=bYUKPJoPnCxeNvu72j4EmPuK7tr1PAC7SHh8ld9Mw3E=,fMS4mpO6buLQ/QMd+zJmxzty/VQ6B1EUZqoCU04zoRU= --sync-url=https://sync-v2.brave.com/v2 --lso-url=https://no-thanks.invalid --variations-server-url=https://variations.brave.com/seed --enable-features=LegacyTLSEnforced,WebUIDarkMode,PrefetchPrivacyChanges,PasswordImport,ReducedReferrerGranularity,AutoupgradeMixedContent,SafetyTip,WinrtGeolocationImplementation --disable-features=AutofillEnableAccountWalletStorage,DirectSockets,IdleDetection,AutofillServerCommunication,LangClientHintHeader,NetworkTimeServiceQuerying,PasswordCheck,TextFragmentAnchor,SignedExchangePrefetchCacheForNavigations,SubresourceWebBundles,NotificationTriggers,WebOTP,PrivacySettingsRedesign,TabHoverCards,SignedExchangeSubresourcePrefetch,SafeBrowsingEnhancedProtection --flag-switches-begin --flag-switches-end --enable-features=WinrtGeolocationImplementation,SafetyTip,AutoupgradeMixedContent,ReducedReferrerGranularity,PasswordImport,PrefetchPrivacyChanges,WebUIDarkMode,LegacyTLSEnforced --disable-features=SafeBrowsingEnhancedProtectionMessageInInterstitials,SafeBrowsingEnhancedProtection,SignedExchangeSubresourcePrefetch,TabHoverCards,PrivacySettingsRedesign,SignedExchangePrefetchCacheForNavigations,SubresourceWebBundles,TextFragmentAnchor,WebOTP,NotificationTriggers,NetworkTimeServiceQuerying,LangClientHintHeader,PasswordCheck,IdleDetection,AutofillServerCommunication,DirectSockets,AutofillEnableAccountWalletStorage --flag-switches-begin --flag-switches-end
Executable Path	C:\Program Files (x86)\BraveSoftware\Brave-Browser\Application\brave.exe
Profile Path	C:\Users\derek\AppData\Local\BraveSoftware\Brave-Browser\User Data\Default

[rebron]

cc: @kjozwiak Can you see if you can reproduce this when you get a chance? I tried on Windows and 1.24.85 following the STRs and could reproduce.

@derekantrican I'm wondering if this has something to do with any extensions you might have installed?

[derekantrican]

Not sure. I haven't seen it for a long time. I did actually see it recently (after not seeing it for a long time), but Brave was out of date so I just updated

[kjozwiak]

@rebron couldn't reproduce it on Win 10 x64 either using the following build:

Brave | 1.24.85 Chromium: 90.0.4430.212 (Official Build) (64-bit)
--- | ---
Revision | e3cd97fc771b893b7fd1879196d1215b622c2bed-refs/branch-heads/4430@{#1429}
OS | Windows 10 OS Version 2009 (Build 19042.964)

Basically used the same STR @derekantrican mentioned via #14659 (comment):

• opened 1.24.85 Chromium: 90.0.4430.212 via a new profile/install
• opened ~5 different tabs
• launched C:\Program Files\BraveSoftware\Brave-Browser\Application\brave.exe --app=https://hulu.com via Run
• closed several of the tabs and the Hulu app stayed opened

@rebron going to close this off as we neither of us can reproduce and it sounds like @derekantrican hasn't seen it in a while either.

[kjozwiak]

@derekantrican please re-open a new issue if you start seeing this again 👍