build: use html detection based on headers and content

package.json

@@ -38,11 +38,11 @@
     "@metascraper/helpers": "~5.2.0",
     "cheerio": "~1.0.0-rc.3",
     "debug": "~4.1.1",
-    "file-type": "~11.0.0",
     "got": "~9.6.0",
     "he": "~1.2.0",
     "html-encode": "~2.1.1",
     "mem": "~4.3.0",
+    "mime-types": "~2.1.24",
     "p-cancelable": "~2.0.0",
     "reachable-url": "~1.1.8",
     "require-one-of": "~1.0.3",

src/auto-domains.json

@@ -24,5 +24,6 @@
 	"medium",
 	"techcrunch",
 	"engadget",
-	"theverge"
+	"theverge",
+	"giphy"
 ]

src/html.js

@@ -1,8 +1,8 @@
 'use strict'
 
 const { isMime } = require('@metascraper/helpers')
+const mimeTypes = require('mime-types')
 const { getDomain } = require('tldts')
-const fileType = require('file-type')
 const cheerio = require('cheerio')
 const { URL } = require('url')
 const path = require('path')
@@ -86,8 +86,9 @@ const htmlTemplate = () => `
 
 module.exports = ({ html, url, headers }) => {
   const contentType = headers['content-type']
-  const htmlTyle = fileType(Buffer.from(html, 0, fileType.minimumBytes))
-  const content = htmlTyle === undefined ? html : htmlTemplate()
+  const isHTML =
+    mimeTypes.extension(contentType) === 'html' && typeof html === 'string' && html.length
+  const content = isHTML ? html : htmlTemplate()
 
   const $ = cheerio.load(content, {
     decodeEntities: false,