Yes that could be relevant.
Can you update the Codename One libraries via Codename One Settings and try 
to reproduce this? 
That line number is no longer applicable.

On Saturday, October 31, 2020 at 4:10:38 PM UTC+2 P5music wrote:

> I do not see Javascript errors in Chrome (previously, syntax errors where 
> shown and I fixed them, now there is nothing)
> But I see this error in log, could it be relevant?
> Exception in thread "Thread-154" java.lang.NullPointerException
> at 
> com.codename1.impl.javase.cef.ResourceHandler.getResponseHeaders(ResourceHandler.java:39)
> Il giorno sabato 31 ottobre 2020 alle 06:04:48 UTC+1 Shai Almog ha scritto:
>
>> Have you tried the chrome JavaScript debugger to see where it's stuck? 
>> Just inject some event code to see where things are blocked and see if 
>> breakpoints are reached.
>>
>> On Friday, October 30, 2020 at 9:30:16 AM UTC+2 P5music wrote:
>>
>>> I realized that the executeAndWait call came from myApp, but in another 
>>> BC that's in another container. 
>>> Now all calls are of the execute() type.
>>>
>>> I debugged and I see that the calls are completed and the app runs again.
>>> So the BC is not blocked by the Javascript injection.
>>>
>>> I created a test case but I see that this blocking does happen only in 
>>> my app.
>>>
>>> What further debugging is possible, said that the execute() method seems 
>>> not to the cause?
>>>
>>>
>>> Il giorno venerdì 30 ottobre 2020 alle 07:06:54 UTC+1 Shai Almog ha 
>>> scritto:
>>>
>>>> executeAndWait uses invokeAndBlock to wait. That means that the 
>>>> JavaScript call never completed. 
>>>> Since this happens in the simulator it's pretty easy to place a 
>>>> breakpoint on executeAndWait to find out who invoked it.
>>>>
>>>> On Thursday, October 29, 2020 at 11:03:17 AM UTC+2 P5music wrote:
>>>>
>>>>> It seems that it is stuck repeating here:
>>>>>
>>>>> while (!res.complete) {
>>>>> Display.getInstance().invokeAndBlock(new Runnable() {
>>>>>
>>>>> public void run() {
>>>>> Util.wait(res, 1000);
>>>>> }
>>>>>
>>>>> });
>>>>> }
>>>>>
>>>>> in executeAndWait. 
>>>>> Notice that in my app this method is not called, instead the normal 
>>>>> execute() is.
>>>>>
>>>>> Il giorno giovedì 29 ottobre 2020 alle 04:25:43 UTC+1 Shai Almog ha 
>>>>> scritto:
>>>>>
>>>>>> I don't know. We'll need to see an issue in isolation in the issue 
>>>>>> tracker to debug this.
>>>>>>
>>>>>> On Wednesday, October 28, 2020 at 11:02:11 AM UTC+2 P5music wrote:
>>>>>>
>>>>>>> No errors in JS console.
>>>>>>> Could it be possible that the execute() instruction is waiting for 
>>>>>>> some call like onSuccess() ?
>>>>>>> If I am not wrong, documentation says it is not the case but maybe 
>>>>>>> it is an issue of the method.
>>>>>>> Thanks
>>>>>>> Il giorno mercoledì 28 ottobre 2020 alle 03:37:21 UTC+1 Shai Almog 
>>>>>>> ha scritto:
>>>>>>>
>>>>>>>> Did you open this in the JavaScript debugger and looked at the JS 
>>>>>>>> console while doing that?
>>>>>>>>
>>>>>>>> On Tuesday, October 27, 2020 at 12:15:15 PM UTC+2 P5music wrote:
>>>>>>>>
>>>>>>>>> It is not a regression, I created a test case with a similar 
>>>>>>>>> layout and it worked with a Google page.
>>>>>>>>>
>>>>>>>>> I debugged my app and it turned up being Javascript injections' 
>>>>>>>>> fault.
>>>>>>>>> But it is very strange:
>>>>>>>>>
>>>>>>>>> The initial page of the BC is made by:
>>>>>>>>>
>>>>>>>>> webView.setPage("<HTML><BODY 
>>>>>>>>> style=\"display:flex;flex-direction:column;\" >"+
>>>>>>>>>                createLines()+
>>>>>>>>>                       "</BODY></HTML>","");
>>>>>>>>>                       
>>>>>>>>> where it is
>>>>>>>>> private String createLines()
>>>>>>>>>     {
>>>>>>>>>         String result="";
>>>>>>>>>         for (int i=0;i<100;i++)
>>>>>>>>>             result=result+"<BR/><P>TEXT - LINE "+i+"</P>";
>>>>>>>>>         return result;
>>>>>>>>>     }                      
>>>>>>>>>     
>>>>>>>>> It is just to have a long page. At this stage the scrollbar and 
>>>>>>>>> the mouse wheel work, and the page is scrollable.
>>>>>>>>>
>>>>>>>>> Then a list of commands like 
>>>>>>>>> var 
>>>>>>>>> div=document.createElement('DIV');div.style.position="relative";
>>>>>>>>> div.id="1";document.body.appendChild(div);
>>>>>>>>>
>>>>>>>>> are injected, in a single string.
>>>>>>>>> As I can see the BC does not like that commands, even just one of 
>>>>>>>>> them (I tried just one of them too).
>>>>>>>>>
>>>>>>>>> The divs are correctly displayed, also with real content inside 
>>>>>>>>> them, but the issue is present even with this bare empty div HTML.
>>>>>>>>>
>>>>>>>>> When that command is injected the BC is no more responsive to 
>>>>>>>>> mouse events.
>>>>>>>>>
>>>>>>>>> This method is used:
>>>>>>>>>  public void executeJS(String command)
>>>>>>>>>     {
>>>>>>>>>         webView.execute(command);
>>>>>>>>>     }
>>>>>>>>>     
>>>>>>>>> What's wrong with that Javascript injection?
>>>>>>>>>
>>>>>>>>> Il giorno martedì 27 ottobre 2020 alle 03:55:28 UTC+1 Shai Almog 
>>>>>>>>> ha scritto:
>>>>>>>>>
>>>>>>>>>> In that case it could be a CEF regression. Can you isolate a 
>>>>>>>>>> runnable test case that reproduces the problem and file an issue?
>>>>>>>>>>
>>>>>>>>>> On Monday, October 26, 2020 at 1:10:53 PM UTC+2 P5music wrote:
>>>>>>>>>>
>>>>>>>>>>> I cannot test on the FX version, I am testing the CEF one on the 
>>>>>>>>>>> Simulator (no device test available too).
>>>>>>>>>>>
>>>>>>>>>>> Yes I see the vertical scrollbar of the BrowserComponent, and it 
>>>>>>>>>>> stays also with 
>>>>>>>>>>> setScrollVisible(false);
>>>>>>>>>>> But the BC does not scroll with that, and it does not scroll 
>>>>>>>>>>> even using the mouse wheel, or dragging over with the mouse.
>>>>>>>>>>>
>>>>>>>>>>> Il giorno lunedì 26 ottobre 2020 alle 04:44:34 UTC+1 Shai Almog 
>>>>>>>>>>> ha scritto:
>>>>>>>>>>>
>>>>>>>>>>>> Do you see a scroll bar on the browser component?
>>>>>>>>>>>> Did you try this on the device? Did you try it with the FX 
>>>>>>>>>>>> version of the browser component?
>>>>>>>>>>>>
>>>>>>>>>>>> On Sunday, October 25, 2020 at 12:28:46 PM UTC+2 P5music wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> So I removed all useless calls to  setScrollable kind of 
>>>>>>>>>>>>> methods.
>>>>>>>>>>>>> It is called just on the mainForm and/or its content pane.
>>>>>>>>>>>>> mainForm.setScrollable(false);
>>>>>>>>>>>>> OR
>>>>>>>>>>>>> mainForm.getContentPane().setScrollableY(false);
>>>>>>>>>>>>> is needed to let not scroll the entire user interface.
>>>>>>>>>>>>>
>>>>>>>>>>>>> But the BC is not scrollable.
>>>>>>>>>>>>> If I set scrollableY=true for the left container it does not 
>>>>>>>>>>>>> scroll either.
>>>>>>>>>>>>> One of the BC or the left container has to be scrollable to 
>>>>>>>>>>>>> fulfill my needs.
>>>>>>>>>>>>>
>>>>>>>>>>>>> What further checks can be done?
>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>> Il giorno domenica 25 ottobre 2020 alle 03:14:39 UTC+1 Shai 
>>>>>>>>>>>>> Almog ha scritto:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Don't change the scrollability of the browser component.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> That option is under zoom and it relates to the scrolling of 
>>>>>>>>>>>>>> the simulator skin itself.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> You don't need to explicitly call setScrollable(false) since 
>>>>>>>>>>>>>> that's the default. The only thing that's scrollable by default 
>>>>>>>>>>>>>> if the 
>>>>>>>>>>>>>> content pane of the main form.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Saturday, October 24, 2020 at 2:09:05 PM UTC+3 P5music 
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> The CEF BC is used. 
>>>>>>>>>>>>>>> for the mainform: setScrollable(false)
>>>>>>>>>>>>>>> for the BC: setScrollableY(true)
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> There is no simulator menu entry "scrollable" to uncheck, 
>>>>>>>>>>>>>>> and I do not understand why to uncheck it anyway, and what it 
>>>>>>>>>>>>>>> would refer 
>>>>>>>>>>>>>>> to?
>>>>>>>>>>>>>>> Please can you explain?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I have nested containers and I set them all with 
>>>>>>>>>>>>>>> setScrollableX(false) and setScrollableY(false).
>>>>>>>>>>>>>>> Also the result container of fab binding is set the same. 
>>>>>>>>>>>>>>> (this result container is added to the form)
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> A thing has be noticed.
>>>>>>>>>>>>>>> The most deep nested level is a BorderLayout. It has in the 
>>>>>>>>>>>>>>> north a vertically-short container, then in the center it has 
>>>>>>>>>>>>>>> the 
>>>>>>>>>>>>>>> BrowserComponent.
>>>>>>>>>>>>>>> When attempting to scroll the BC, just sometimes I see a 
>>>>>>>>>>>>>>> very tiny movement of the entire BC including the vertical 
>>>>>>>>>>>>>>> scrollbar, but 
>>>>>>>>>>>>>>> not the other container in north position.
>>>>>>>>>>>>>>> This reminds me that something is scrolling that's 
>>>>>>>>>>>>>>> surrounding the BC but I cannot understand what.
>>>>>>>>>>>>>>> Do you see anything about this?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Il giorno sabato 24 ottobre 2020 alle 07:32:54 UTC+2 Shai 
>>>>>>>>>>>>>>> Almog ha scritto:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> How is it set to scrollable?
>>>>>>>>>>>>>>>> If you mean in the simulator menu try to uncheck scrollable.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Are you using CEF or the FX based browser?
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Friday, October 23, 2020 at 5:41:50 PM UTC+3 P5music 
>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> My CodenameApp has a main form that splits the screen like 
>>>>>>>>>>>>>>>>> a master detail layout in landscape mode. It is set not 
>>>>>>>>>>>>>>>>> scrollable.
>>>>>>>>>>>>>>>>> A table layout is used with some constraints to have this 
>>>>>>>>>>>>>>>>> appearance.
>>>>>>>>>>>>>>>>> I am testint the app in the simulator.
>>>>>>>>>>>>>>>>> In the left part a BrowserComponent is inside a container 
>>>>>>>>>>>>>>>>> and displays some HTML code.
>>>>>>>>>>>>>>>>> I see that the vertical bar appears on the BC because the 
>>>>>>>>>>>>>>>>> HTML overflows vertically, but cannot be moved, it is blocked.
>>>>>>>>>>>>>>>>> The BC is not resposive to the mouse wheel too. It is set 
>>>>>>>>>>>>>>>>> scrollable.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> The container is bound to the FloatingActionButton that is 
>>>>>>>>>>>>>>>>> floating on the container itself and the BC.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Do you know any issue that prevents the BC from being 
>>>>>>>>>>>>>>>>> scrolled? Is it something related to the Version 7.0 
>>>>>>>>>>>>>>>>> milestone issues?
>>>>>>>>>>>>>>>>> Thanks in advance
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>

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