webCoRE v1.0.30 - After upgrade issue

Since updating to webCoRE v1.0.30 - pistons that worked without issues are now generating multiple errors in webcore, but are still working.
These pistons are all using HTTP Post

Error - java.lang.NullPointerException: Cannot invoke method contains() on null object on line 4457 (ahttpRequestHandler)

Can anybody help ?

thanks
David

Tagging @nh.schottfam

pushed an updated release with this fix