I downloaded the v0.1.0 source from the Releases tab, and it seems to be missing the fix discussed in Issue #3.
I searched dist/juniper.min.js for Kernel.startNew({type:this.kernelType,serverSettings:i}) and replaced that with Kernel.startNew({type:this.kernelType,name:this.kernelType,serverSettings:i}), and non-Python kernel support started working for me.
I downloaded the v0.1.0 source from the Releases tab, and it seems to be missing the fix discussed in Issue #3.
I searched
dist/juniper.min.jsforKernel.startNew({type:this.kernelType,serverSettings:i})and replaced that withKernel.startNew({type:this.kernelType,name:this.kernelType,serverSettings:i}), and non-Python kernel support started working for me.