get rid of weird hidden images

exampleOutput.md

@@ -1,5 +1,5 @@
 
-> medium-to-markdown@0.0.2 convert C:\dev\misc\medium-to-markdown
+> medium-to-markdown@0.0.3 convert C:\dev\misc\medium-to-markdown
 > node index.js "https://medium.com/@almenon214/keeping-yourself-motivated-as-a-coder-a16a6fcf49c7"
 
 Keeping yourself motivated as a coder
@@ -15,8 +15,6 @@ Follow
 
 Programmers probably have one of the most distracting jobs in existence. Their entire workday is spent in front of a computer — a literally endless source of entertainment and pleasure, a limitless virtual heaven. With literally just a click of a button, you could be in another world. You could be slaying dragons. You could be learning about the [great molasses flood of 1919](https://www.damninteresting.com/the-great-molasses-flood-of-1919/). You could literally be doing _anything._ So why do programmers spend their time programming, a hobby that could only be described as exciting by masochistic workaholics?
 
-![](https://miro.medium.com/max/60/1*S15R5ty8G-kRGo-ghk2EGA.jpeg?q=20)
-
 <img class="cp t u gs ak" src="https://miro.medium.com/max/2048/1\*S15R5ty8G-kRGo-ghk2EGA.jpeg" width="1024" height="815" role="presentation"/>
 
 Pictured: sticky, sweet, syrupy disaster

lib/convertFromUrl.js

@@ -33,6 +33,22 @@ turndownService.addRule('mediumInlineLink', {
   }
 })
 
+// Medium has these weird hidden images that are in the html and get rendered
+// by turndown. We filter these out.
+turndownService.addRule('noHiddenImages', {
+  filter: function (node, options) {
+    return (
+      node.nodeName === 'IMG' &&
+      node.getAttribute('src') &&
+      node.getAttribute('src').endsWith('?q=20')
+    )
+  },
+
+  replacement: function () {
+    return ''
+  }
+})
+
 function convertFromUrl(url) {
   return new Promise(function(resolve, reject) {
     request({