feat: add lightweight version

Author: Kikobeats

README.md

@@ -1,6 +1,5 @@
 # is-url-http
 
-
 ![Last version](https://img.shields.io/github/tag/Kikobeats/is-url-http.svg?style=flat-square)
 [![Build Status](https://img.shields.io/travis/Kikobeats/is-url-http/master.svg?style=flat-square)](https://travis-ci.org/Kikobeats/is-url-http)
 [![Coverage Status](https://img.shields.io/coveralls/Kikobeats/is-url-http.svg?style=flat-square)](https://coveralls.io/github/Kikobeats/is-url-http)
@@ -28,6 +27,17 @@ isUrlHttp('mailto://kiko@beats.com') // ==> false
 isUrlHttp('callto:192.168.103.77+type=ip') // ==> false
 ```
 
+If you need to run the package in a browser environment, you can save some bytes using the lightweight version:
+
+```js
+const isUrlHttp = require('is-url-http/lightweight')
+
+isUrlHttp('https://kikobeats.com') // ==> true
+isUrlHttp('https://kikobeats.com') // ==> true
+isUrlHttp('mailto://kiko@beats.com') // ==> false
+isUrlHttp('callto:192.168.103.77+type=ip') // ==> false
+```
+
 ## License
 
 **is-url-http** © [Kiko Beats](https://kikobeats.com), released under the [MIT](https://github.com/Kikobeats/is-url-http/blob/master/LICENSE.md) License.<br>

lightweight.js

@@ -0,0 +1,12 @@
+'use strict'
+
+const URL = global.window ? window.URL : require('url').URL
+const REGEX_HTTP_PROTOCOL = /^https?:\/\//i
+
+module.exports = url => {
+  try {
+    return REGEX_HTTP_PROTOCOL.test(new URL(url).href)
+  } catch (err) {
+    return false
+  }
+}

package.json

@@ -3,6 +3,7 @@
   "description": "Check if an URL is a valid HTTP URL.",
   "homepage": "https://nicedoc.io/Kikobeats/is-url-http",
   "version": "2.0.1",
+  "browser": "lightweight.js",
   "main": "index.js",
   "author": {
     "email": "josefrancisco.verdu@gmail.com",
@@ -51,7 +52,8 @@
     "node": ">= 8"
   },
   "files": [
-    "index.js"
+    "index.js",
+    "lightweight.js"
   ],
   "scripts": {
     "clean": "rm -rf node_modules",
@@ -77,5 +79,7 @@
     "*.md": [
       "standard-markdown"
     ]
-  }
+  },
+  "umd:main": "lightweight.js",
+  "unpkg": "lightweight.js"
 }