WebDynpro development vs. ports and IE security settings?

Hi!
We have Sapgui running in a Citrix server and its hosted there for multiple developers. The backend they access is SRM where they need to do WebDynpro development work.
Problem is that when going to the WebDynpro editor screen and choosing the layout tab they can see only a blank page!
What are the requirements for the WebDynpro development workbench in terms of:
- Ports required open between the Citrix host machine and SAP server? We have already opened ports 32nn and 80nn.
- Internet Explorer settings that should be looked at? Security settings that must be enabled?
- Any other settings in host or client side that needs to be checked?
Thanks in advance!
.Ossi

Hi,
f12>Networking tab, click the start button then refresh the page to view request/response timings.
http://nancyjoart.com/api/art/ThumbImage/fb958270-8c20-46e9-9adf-05ef6990ec85/250
Key Value
Response HTTP/1.1 200 OK
Cache-Control public, max-age=36000, s-maxage=36000
Transfer-Encoding chunked
Content-Type text/html
Server Microsoft-IIS/8.0
X-AspNet-Version 4.0.30319
X-Powered-By ASP.NET
Date Wed, 20 Aug 2014 02:34:12 GMT
you are sending back the wrong mime-type + it appears that you are not using response.close after streaming back the image in your asp.net code behind.
Open a new window in IE... copy and paste
http://nancyjoart.com/api/art/ThumbImage/fb958270-8c20-46e9-9adf-05ef6990ec85/250
in the address bar... the image loads but the document.readyState does not reach loaded. there is no EOF in the response body and it is served as text/html not image/jpg.
ensure Internet Options>Security tab, click "Reset all zones to default"... (IE has security settings for mime types) and also that Tracking Protection is turned off for the site (Tools>Tracking protection)
+ the defer attribute on the <script> tag only applies to script tags with a src attribute... validate and correct your markup errors at validator.w3.org.
Post questions about html, css and scripting to the IE Web Development forum. Include with your question a link to your website or a mashup that shows the issue.
Questions regarding Internet Explorer 8, 9 and 10 and Internet Explorer 11 for the IT Pro Audience. Topics covered are: Installation, Deployment, Configuration, Security, Group Policy, Management questions. If you are a consumer looking for answers or to
raise a question, it's highly recommended you head on over to http://answers.microsoft.com
Rob^_^

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