Installing the plugin

pip install bottle-cors-plugin

after this on your bottle app you need to import cors_plugin and install for example.

# -*- coding: utf-8 -*-
from bottle import app, response, route, run
from bottle_cors_plugin import cors_plugin

@route('/', method='GET')
def landing():
  response.content_type = 'application/json'
  return {'status': 'Works'}

#Confugure the server
app = app()
app.install(cors_plugin('*'))

if name == "__main__":
  run(host='localhost', port=7000)

On the cors_plugin function you can send a simple string or array of origins this variable will set globaly on the plugin so you just set-it one time to add * origins just don’t put anything on the function

cors_plugin()

This will return the * origins

cors_plugin('https://google.com')

with just google.com as and origin or

cors_plugin(['https://google.com', 'http://google.com'])

for multiple origins

Aborts

for normal abort errors you need to import the abort of the cors_plugin like this

from bottle_cors_plugin import abort


@route('/', method='GET')
def landing():
  response.content_type = 'application/json'
  abort(500, 'Hola')
  return {'status': 'Works'}

It works with all errors, and for custom error handler just import the cors_headers to apply on the function example like this

# -*- coding: utf-8 -*-
from import_env import os
from bottle import error, response
from bottle_cors_plugin import cors_headers

error_log = error

for status_code in range(200, 600):
@error(status_code)
def errorCustom(error_log):
    cors_headers()
    error_log.content_type = 'application/json'
    return error_log.body