refactor: origins are optional

Author: Kikobeats

README.md

@@ -33,21 +33,20 @@ mql('https://microlink.io', {
 
 ## Environment Variables
 
-### ORIGINS
+### API_KEY
 
 *Required*</br>
-Type: `string`|`string[]`
+Type: `string`
 
-The list of allowed domains authorized to consume your Microlink API credentials.
+Your Microlink API key used to [authenticate](https://microlink.io/docs/api/api-basics/authentication) your requests.
 
-Note domains should be provided in the [URL.origin](https://developer.mozilla.org/en-US/docs/Web/API/URL/origin) format (e.g., `'https://example.com'`).
+### ORIGINS
 
-### API_KEY
+Type: `string`|`string[]`
 
-*Required*</br>
-Type: `string`
+The list of allowed domains authorized to consume your Microlink API credentials.
 
-Your Microlink API key used to [authenticate](https://microlink.io/docs/api/api-basics/authentication) your requests.
+Note domains should be provided in the [URL.origin](https://developer.mozilla.org/en-US/docs/Web/API/URL/origin) format (e.g., `'https://example.com'`).
 
 ### API_ENDPOINT
 

pages/api/index.js

@@ -11,9 +11,10 @@ const API_KEY = process.env.API_KEY
 const origins = process.env.ORIGINS.split(',').map(n => n.trim())
 const isProduction = NODE_ENV === 'production'
 
-const isAllowedDomain = isProduction
-  ? origin => origins.includes(origin)
-  : () => true
+const isAllowedDomain =
+  isProduction && origins.length > 0
+    ? origin => origins.includes(origin)
+    : () => true
 
 export default async request => {
   const url = request.nextUrl