Fixed bug in index.js when fetching triposes if data is empty
Fixed bug in index.js when fetching triposes if data is empty

ucamrc/grasshopper-ui,fronteerio/grasshopper-ui,fronteerio/grasshopper-ui,fronteerio/grasshopper-ui,ucamrc/grasshopper-ui,Coenego/grasshopper-ui,Coenego/grasshopper-ui,ucamrc/grasshopper-ui,CUL-DigitalServices/grasshopper-ui,Coenego/grasshopper-ui,CUL-DigitalServices/grasshopper-ui,CUL-DigitalServices/grasshopper-ui