If this reproduces on tip-of-tree WinCairo in the WebKit repository, then you 
should file a Web Inspector/WinCairo bug in Bugzilla and continue this 
discussion there.
I really have no way of knowing what’s going on just by reading these steps. 
You could also try reaching the relevant folks on IRC (#webkit or 
#webkit-inspector).

        -Brian

> On Oct 2, 2015, at 1:29 PM, Vienneau, Christopher <cvienn...@ea.com> wrote:
> 
> Hey Guys,
>  
> I’m redirecting Rupali’s enquiry about WebInspector’s Debugger and WinCairo 
> to a new audience.  I came across this again the other day, I think all the 
> debug information Rupali provided is still accurate for our current state.  
> In brief, when a breakpoint is hit in the debugger the pane that should show 
> the source gets stuck as a circular time spinner.  This blocks a lot of 
> functionality sine you can’t see what you’re debugging.  We would appreciate 
> any tips on how to resolve this in WinCairo since our port behaves the same 
> way.
>  
> Thanks
>  
> Chris
>  
> From: webkit-help-boun...@lists.webkit.org 
> <mailto:webkit-help-boun...@lists.webkit.org> 
> [mailto:webkit-help-boun...@lists.webkit.org 
> <mailto:webkit-help-boun...@lists.webkit.org>] On Behalf Of Sharma, Rupali
> Sent: Monday, August 31, 2015 11:34 AM
> To: Sharma, Rupali <rupsha...@ea.com <mailto:rupsha...@ea.com>>; 
> webkit-h...@lists.webkit.org <mailto:webkit-h...@lists.webkit.org>
> Subject: Re: [webkit-help] Issue with Web Inspector debugger breakpoint 
> handling (on Wincairo)
>  
> Hi folks,
>  
> Are you aware of this issue with web Inspector which we see on WinCairo?
>  
> Thanks,
> Rupali
>  
> From: webkit-help-boun...@lists.webkit.org 
> <mailto:webkit-help-boun...@lists.webkit.org> 
> [mailto:webkit-help-boun...@lists.webkit.org 
> <mailto:webkit-help-boun...@lists.webkit.org>] On Behalf Of Sharma, Rupali
> Sent: Wednesday, August 26, 2015 11:16 AM
> To: webkit-h...@lists.webkit.org <mailto:webkit-h...@lists.webkit.org>
> Subject: [webkit-help] Issue with Web Inspector debugger breakpoint handling 
> (on Wincairo)
>  
> Hello,
>  
> We are seeing an issue with the Web Inspector debugger on latest WinCairo [ 
> using Webkit r188436]. In the wincairo webinpector, whenever a breakpoint is 
> set and then web page reload on a javascript source, the view goes on into 
> some indefinite waiting and never shows up, until we press 
> continue-script-execution or another page-refresh.
>  
> Here are the simple steps to reproduce it,
> 1.       Launch WinCairo and go to google.com <http://google.com/>
> 2.       Open Web inspector and open the script source of any .js script
> 3.       Set a breakpoint anywhere
> 4.       Reload the web page
>  
> What we see is the spinner spinning and never the script source. However, if 
> one presses continue-script-execution from the debugger controls, we get the 
> view back.
>  
> Some points of debugging we did at our end,
> (i) We did some digging around the breakpoint setting, and do see the flow 
> correctly being going to handlepause() of the ScriptDebugServer. Though I see 
> the vmEntryGlobalObject is not updated with any value or callframe.
> I did not see any abnormality in the listener dispatching callback, with the 
> correct pause-reason to pass i.e. Breakpoint. However, I am not sure if its 
> sending the right pause-data to the frontend.
>  
> (ii)It gets stuck in the infinite eventloop which does look fine to me, as 
> long as it is paused.
>  
> (iii)Another observation I see is, the message “TimelineRecordingStopped” 
> being sent to the frontend. I believe, this is something newly added and not 
> sure, if at all it’ll effect the debugger scriptsource in any way. [reference 
> : doDispatchMessageOnFrontendPage]
>  
> (iv)Coming onto the Web inspector UI side of story, I did see one bug, that 
> even though  the method in DebuggerManager.js  “debuggerDidPause” got the 
> right pause-reason from the webkit, its not able to pass on correctly due to 
> an apparent bug in
> _pauseReasonFromPayload: function(payload)
> Here, the input payload does not match any of the  DebuggerAgent.PausedReason 
> and hence falls to the error of unknown reason. The correct string to match 
> would be “Breakpoint”. However, correcting the flow still doesn’t give us any 
> favorable behavior. Though, I believe it’s good to know.
>  
> Would you have a better insight as to what exactly is blocking the script 
> source to display in the paused-state of web inspector debugger?
>  
> The output log looks like:
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL - http://www.google.com/ <http://www.google.com/> with 
> status = 200
> EAWebKit:Event kLETLoadCompletedWithoutErrors : The load is completed without 
> errors
> Total Page Loaded                     : 1.139
> Total Page Lib Tick Update                                              : 
> 0.604  Slowest:: 0.521
> Total Page View Tick Update           : 0.000  Slowest:: 0.000
> Total Page Network Tick Update        : 0.000
> Total Jobs Loop                       : 0.503  Slowest:: 0.489
> Total Page Script                     : 0.000  Slowest:: 0.000
> Font Glyph Draw                       : 0.000
> Bitmap Image Draw                     : 0.000
> Bitmap Image Decoder                  : 0.000
> Image Compression                     : 0.000
> Font/Image Raster Draw                : 0.000
> TH Connect                            : 0.000
> TH Transfer                           : 0.000
> TH Disconnect                         : 0.000
> TH Size                               : 0
> TH Files                              : 0
> Cached Connect                        : 0.000
> Cached Transfer                       : 0.000
> Cached Disconnect                     : 0.000
> Cached Size                           : 0
> Cached files                          : 0
> Java Script Parse                     : 0.000
> Java Script Execute                   : 0.000
> CSS Sheet Parse                       : 0.000
> Font Loading Time                     : 0.000
> Page user1                            : 0.000
> Page user2                            : 0.000
> Page user3                            : 0.000
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -http://www.google.com/xjs/_/js/k=xjs.hp.en_US.dipijOltWAk.O/m=sb_he,d/rt=j/d=1/t=zcms/rs=ACT90oGH2j95ix8dWTU-Ejrgyf_E0GhQSQ
>  
> <http://www.google.com/xjs/_/js/k=xjs.hp.en_US.dipijOltWAk.O/m=sb_he,d/rt=j/d=1/t=zcms/rs=ACT90oGH2j95ix8dWTU-Ejrgyf_E0GhQSQ>
>  with status = 200
> 2015/08/26-10:51:01.462 protoupnp: multicasting discovery request
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-464 Column-20 Message: DebuggerDidPause called ---->  got some data and 
> reason
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-465 Column-20 Message: pause reason isBreakpoint
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-466 Column-20 Message: pause data is[object Object]
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-628 Column-20 Message: 1. payload to _pauseReasonFrompaylod is 
> Breakpoint
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-635 Column-23 Message: >>> Payload is Breakpoint? is Breakpoint
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-478 Column-20 Message: pause reason isbreakpoint
> EAWebKit: JS - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DebuggerManager.js>
>  Line-504 Column-20 Message: pause reason isbreakpoint
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Exception.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Exception.svg>with
>  status = 0
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/BreakpointButton.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/BreakpointButton.svg>
>  with status = 0
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/ResultLine.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/ResultLine.svg>
>  with status = 0
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Resume.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Resume.svg>with
>  status = 0
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Function.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Function.svg>with
>  status = 0
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/PausedBreakpoint.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/PausedBreakpoint.svg>
>  with status = 0
> EAWebKit:Event kLETResourceResponseReceived : The server has responded to a 
> resource request URL 
> -file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Resume.svg
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Images/Resume.svg>with
>  status = 0
> EAWebKit: JS Error - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Protocol/InspectorBackend.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Protocol/InspectorBackend.js>
>  Line-267 Column-22 Message: Request with id = 37 failed. 
> {"code":-32601,"message":"'IndexedDB' domain was not found"}
> EAWebKit: JS Error - 
> file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DOMTreeManager.js
>  
> <file:///C:/EAOS/EAOS/EAWebKit/SB/InternalTeam/w-179714/EAWebKitDemoUTFWin/dev/data/WebInspectorUI/UserInterface/Controllers/DOMTreeManager.js>
>  Line-454 Column-30 Message: Error while getting the named flows for document 
> 1: Could not find node with given id
> 2015/08/26-10:51:16.656 protoupnp: multicasting discovery request
> The thread 0x2efc has exited with code 0 (0x0).
> 2015/08/26-10:51:31.656 protoupnp: multicasting discovery request
> Thanks,
> Rupali
> _______________________________________________
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