Blank page after deploying to BA server tomcat

[greenread]

I deployed latest spoon.war into webapps directory of tomcat under BA server installation and after restarting tomcat i am trying to open http://localhost:8080/spoon but its opeing only bank page nothing else.

Kindly help me understand what i am doing wrong.

[HiromuHota]

Hi Ankit, thank you for reporting an issue. Let me help you identify what went wrong.
The latest spoon.war means ver. 0.6.1.4, please correct me if it is wrong.

First, please tell me about your environment:

• Version of BA server (e.g., CE 6.1.0.1)
• Java version (e.g., Oracle Java 8u101)
• Host OS and its version (e.g., Windows 10 Professional 64 bits)

Then,

• Does this issue happen only on the latest version of webSpoon? Did you try earlier versions and the same result?
• Can you see the Pentaho User Console when you try to open http://localhost:8080/ ?

Finally, if you don't mind, please copy and paste the log of Tomcat (tomcat/logs/catalina.out), but please delete any confidential information from the log.

[greenread]

Hi Hiromu,

Thanks for the prompt reply. Yes latest means ver. 0.6.1.4
Version of BA Server EE 6.0.1.0.386
Java version jdk 1.8.0_73
Host OS windows 7 professional 64 bits

No this is first time i am going to try any version of webspoon.
Yes Pentaho user consol is visible and working fine.

catalina.2017-01-03.txt

[HiromuHota]

I was able to reproduce this symptom with IE8, which is the default version in Windows 7, but not supported by RAP/RWT. See here for the detail.
What is your browser? If you use IE8, please use IE9+ or other supported browsers.

[greenread]

I am using IE11 and chome 55. It's supported as per the RAP 3.0 link provided by you. What else i can try?

[HiromuHota]

Yes, these browsers are supported. Then, I want to make sure I correctly understand what the blank page means. Can you take a screenshot of your blank page and upload to here?

[greenread]

Yes. Here is it.

[HiromuHota]

I'm still in the middle of investigation. I thought it was because of the version of Tomcat, but it was not.
Your symptom is different from the one I had with IE8: the page is white in your case.
I also had the same symptom as yours during my tests, but it's gone when I restarted Tomcat.
So I suspect there is a race condition in the plugin loading or somewhere.
Did you try to restart Tomcat? Does this issue happen every time you restart it?

[greenread]

Yes. I tried restarting tomcat several times and it happens each of the time.

[HiromuHota]

Can you add a slash at the end and try http://localhost:8080/spoon/ instead of http://localhost:8080/spoon?

[greenread]

:) that solves it. Thanks a lot.

[HiromuHota]

I'm glad the issue was solved.

Here is the reason behind the scene:
CE/EE 6.0 comes with Tomcat of 8.0.24.0, CE/EE 6.1 comes with Tomcat of 8.0.33.0.
According to the change log, Tomcat's behavior for redirect has changed in 8.0.30 in a way that http://localhost:8080/spoon is redirected to http://localhost:8080/spoon/ in 8.0.30+.
I will update the README accordingly.