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· Apr 20, 2016

Changing the browser used for Atelier Diagram Editor

#Business Process (BPL) #DTL

I installed Atelier on Windows in order to take a look at how the BPL and DTL graphical editors accessible via the "Open diagram editor" action work. The diagram editor is opened but I get the following error:


Message from webpage
---------------------------
Unable to load SVG diagram. Please ensure your browser is supported for portal access.

It looks like Atelier uses IE in order to display the editor even though my Windows default browser is Chrome.

I tried to change the General -> Web Browser setting to "Use external web browser" and choosing Firefox or Default system web browser. However, regardless on this change (and Atelier restart), IE is still used for opening the diagram editor, so it seems that this setting affects some other browser usage.

The same problem affects the browser launched for the Atelier Videos site located on the Overview page.

Is there any setting which I could change in order for the diagram editor to be opened using other browser than IE or is this not possible at the moment?

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Timothy Leavitt · Apr 22, 2016

The SVG diagram is loaded in Eclipse's internal browser, which will always be IE for you. The preference you found applies to "external" browsers.

Within the internal browser in Eclipse, you can right click and select "view source." When you do so, you should see something like this near the top:

<meta http-equiv="X-UA-Compatible" content="IE=9" />

It would be interesting to know what <meta> tag you see, if any. It would also be useful to know the value of the User-Agent header sent by the internal browser. There are several ways to find that; here's one quick option:

  1. Open a BPL class in Atelier
  2. Run the following code in Terminal: 
    k ^%ISCLOG s ^%ISCLOG = 2 read x s ^%ISCLOG = 0
  3. In Atelier, right click in the BPL class and click the "Open diagram editor" popup menu item
  4. Hit enter in Terminal to stop logging.

If you then zwrite ^%ISCLOG you should see the user-agent in a $listbuild list near the end of the output. I see:

^%ISCLOG("Data",180,0)=$lb(900,,0,5532241409,"0²!t"_$c(28,16)_"IÎ"_$c(22)_"F40"_$c(133)_"¯4_ài"_$c(156)_"èB_9}%"_$c(144,155,9)_"!`"_$c(135)_"ü",2,"ENSDEMO","001000010000OoTvE12bLJWATFMLUAodU0gK1Z8HvjdbJWLK3M",,0,"en-us","OoTvE12bLJ",2,1,"/csp/ensdemo/",$lb("UnknownUser","%All","%All",64,-559038737),"","","","2016-04-22 13:28:27","2016-04-22 13:28:30","","Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Win64; x64; Trident/6.0)","","",0,"",$lb($lb("%ZEN.SessionEvents","ENSDEMO",)),"","%iscmgtportal:5ykW4kOfOzwr7O8gcok8XQ--",0,"","","","","")

(It's awesome how IE says it's Mozilla, for compatibility reasons.)

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Ondřej Hoferek · Apr 25, 2016

Thank you for the hints Timothy.

On the Eclipse browser page source, I see the following <meta> tag:

<meta http-equiv="X-UA-Compatible" content="IE=edge" />

The user-agent header value sent by the browser is:

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Win64; x64; Trident/4.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)

Jonathan was right. I have IE 8 installed on that system but I guess we should be able to deal with such situation as well (probably providing a hint for the user to upgrade IE).  It would also be quite convenient for users to be able to choose a browser for displaying the Diagram Editor as well as the Atelier Video pages. However, I rather see this as a possible future enhancement, not a must have feature.

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