TypeError: Cannot set properties of undefined (setting 'onerror')

[gwheeloc69]

If you try to put a promise into a indexedDb table an error is generated in the mutate method, which it most likely should. I was troubleshooting a problem and discovered I was trying to table.put() a promise. instead of a valid data record. Anyway, the req object is null and you get the TypeError when the onerror property is attempting to be accessed. Maybe req needs to be initialized as an empty object first?