TypeError: Cannot read property 'keys' of undefined at Object.get cookies [as cookies]
I ran my koa app and I got this error in the console and I can't seem to figure out why.
```
TypeError: Cannot read property 'keys' of undefined

- at Object.get cookies [as cookies] (/home/israel/Documents/stylesteel-sound-wave/node_modules/koa/lib/context.js:171:24)
- at serializeInto (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:895:21)
- at serializeObject (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:347:18)
- at serializeInto (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:941:17)
- at serializeObject (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:347:18)
- at serializeInto (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:941:17)
- at serializeObject (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:347:18)
- at serializeInto (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:941:17)
- at serializeObject (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:347:18)
- at serializeInto (/home/israel/Documents/stylesteel-sound-wave/node_modules/bson/lib/bson/parser/serializer.js:941:17)
```
