tab.close() pending until timeout.(headless only)

[hjin-me]

headless_chrome = "1.0.7"
rustc 1.71.1 (eb26296b5 2023-08-03)

I try to close tab tab.close().

fn test_headless_close() -> Result<()> {
    let launch_options = LaunchOptions::default_builder()
        .path(Some(default_executable().map_err(|e| anyhow!(e))?))
        // .headless(false)
        .build()?;
    let browser = Browser::new(launch_options)?;
    let tab = browser.new_tab()?;
    tab.close(false)?;
    Ok(())
}

when .headless(false), this code works fine.

but .headless(true), this code will block on tab.close() until timeout.

I got some logs below.

headless

2023-11-08T06:57:39.059130Z TRACE headless_chrome::browser: Target info changed: TargetInfo { target_id: "EF04033ED5930248F48CDBDA995350DF", Type: "page", title: "about:blank", url: "about:blank", attached: true, opener_id: None, can_access_opener: false, opener_frame_id: None, browser_context_id: Some("B11096F29DFB994D46AD1E29B2632687") }    
2023-11-08T06:57:39.092790Z TRACE headless_chrome::browser::tab: Calling method: CloseTarget { target_id: "EF04033ED5930248F48CDBDA995350DF" }    
2023-11-08T06:57:39.092900Z TRACE headless_chrome::browser::transport::waiting_call_registry: registered 17    
2023-11-08T06:57:39.092923Z TRACE headless_chrome::browser::transport: Msg to tab: {"method":"Target.closeTarget","id":17,"params":{"targetId":"EF04033ED5930248F48CDBDA995350DF"}}    
2023-11-08T06:57:39.092946Z TRACE headless_chrome::browser::transport::waiting_call_registry: registered 18    
2023-11-08T06:57:39.154206Z TRACE headless_chrome::browser::transport: sent method call to browser via websocket    
2023-11-08T06:57:39.154265Z TRACE headless_chrome::browser::transport: waiting for response from call registry: 18 "SendMessageToTarget { message: \"{\\\"method\\\":\\\"Target.closeTarget\\\",\\\"id\\\":17,\\\"params\\\":{\\\"targetId\\\":\\\"EF04033ED5930248F48CDBDA995350DF\\\"}}\", session_id: Some(\"127C64626FBA3464FBB6DE64E1593C66\"), target_id: None }"    
// diff
2023-11-08T06:57:39.154864Z TRACE headless_chrome::browser: Target info changed: TargetInfo { target_id: "EF04033ED5930248F48CDBDA995350DF", Type: "page", title: "about:blank", url: "about:blank", attached: false, opener_id: None, can_access_opener: false, opener_frame_id: None, browser_context_id: Some("B11096F29DFB994D46AD1E29B2632687") }    
2023-11-08T06:57:39.155015Z TRACE headless_chrome::browser: Unhandled event: DetachedFromTarget(DetachedFromTargetEvent { param    
2023-11-08T06:57:39.155133Z TRACE headless_chrome::browser: Target destroyed: "EF04033ED5930248F48CDBDA995350DF"    
2023-11-08T06:57:39.156125Z TRACE headless_chrome::browser::transport::waiting_call_registry: Resolving call    
2023-11-08T06:57:39.160459Z TRACE headless_chrome::browser::transport: received response for: 18 "SendMessageToTarget { message: \"{\\\"method\\\":\\\"Target.closeTarget\\\",\\\"id\\\":17,\\\"params\\\":{\\\"targetId\\\":\\\"EF04033ED5930248F48CDBDA995350DF\\\"}}\", session_id: Some(\"127C64626FBA3464FBB6DE64E1593C66\"), target_id: None }"    
2023-11-08T06:57:39.160522Z TRACE headless_chrome::browser::transport: waiting for response from call registry: 17 "CloseTarget { target_id: \"EF04033ED5930248F48CDBDA995350DF\" }"    
// call.id 17 not Resolving

with head (success)

2023-11-08T07:02:46.514244Z TRACE headless_chrome::browser: Target info changed: TargetInfo { target_id: "78F6EF70E5CAC390202B2C843FD554C9", Type: "iframe", title: "chrome-untrusted://new-tab-page/one-google-bar?paramsencoded=", url: "chrome-untrusted://new-tab-page/one-google-bar?paramsencoded=", attached: false, opener_id: None, can_access_opener: false, opener_frame_id: None, browser_context_id: Some("535B81F83AEB785617916DE65A50A09B") }    
2023-11-08T07:02:46.555259Z TRACE headless_chrome::browser::tab: Calling method: CloseTarget { target_id: "BCC7066DC07FF28A197BA3CD5ACC738D" }    
2023-11-08T07:02:46.555319Z TRACE headless_chrome::browser::transport::waiting_call_registry: registered 22    
2023-11-08T07:02:46.555335Z TRACE headless_chrome::browser::transport: Msg to tab: {"method":"Target.closeTarget","id":22,"params":{"targetId":"BCC7066DC07FF28A197BA3CD5ACC738D"}}    
2023-11-08T07:02:46.555352Z TRACE headless_chrome::browser::transport::waiting_call_registry: registered 23    
2023-11-08T07:02:46.712592Z TRACE headless_chrome::browser::transport: sent method call to browser via websocket    
2023-11-08T07:02:46.712686Z TRACE headless_chrome::browser::transport: waiting for response from call registry: 23 "SendMessageToTarget { message: \"{\\\"method\\\":\\\"Target.closeTarget\\\",\\\"id\\\":22,\\\"params\\\":{\\\"targetId\\\":\\\"BCC7066DC07FF28A197BA3CD5ACC738D\\\"}}\", session_id: Some(\"871D2B61BDD94C235CB91D074C8048A1\"), target_id: None }"    
2023-11-08T07:02:46.713102Z TRACE headless_chrome::browser::transport::waiting_call_registry: Resolving call    
2023-11-08T07:02:46.713139Z TRACE headless_chrome::browser::transport::waiting_call_registry: Resolving call    
2023-11-08T07:02:46.716324Z TRACE headless_chrome::browser::tab: Unhandled event: InspectorDetached(DetachedEvent { params: Detached    
2023-11-08T07:02:46.719010Z TRACE headless_chrome::browser::transport: received response for: 23 "SendMessageToTarget { message: \"{\\\"method\\\":\\\"Target.closeTarget\\\",\\\"id\\\":22,\\\"params\\\":{\\\"targetId\\\":\\\"BCC7066DC07FF28A197BA3CD5ACC738D\\\"}}\", session_id: Some(\"871D2B61BDD94C235CB91D074C8048A1\"), target_id: None }"    
2023-11-08T07:02:46.719062Z TRACE headless_chrome::browser::transport: waiting for response from call registry: 22 "CloseTarget { target_id: \"BCC7066DC07FF28A197BA3CD5ACC738D\" }"    
2023-11-08T07:02:46.719075Z TRACE headless_chrome::browser::transport: received response for: 22 "CloseTarget { target_id: \"BCC7066DC07FF28A197BA3CD5ACC738D\" }"    
2023-11-08T07:02:46.719095Z TRACE headless_chrome::browser::tab: Got result: Take { iter: Chars(['O', 'k', '(', 'C', 'l', 'o', 's', 'e', 'T', 'a', 'r', 'g', 'e', 't', 'R', 'e', 't', 'u', 'r', 'n', 'O', 'b', 'j', 'e', 'c', 't', ' ', '{', ' ', 's', 'u', 'c', 'c', 'e', 's', 's', ':', ' ', 't', 'r', 'u', 'e', ' ', '}', ')']), n: 70 }    

in headless mode, closeTarget will case target Destroy make waiting_call_registry will not Resolving call then timeout.

do you have any idea to solve this?

[reecer]

I'm also having this issue. If I use tab.close_with_unload() then it doesn't hang. That uses Page.close instead of Target.closeTarget