Repair bitrot in the utils/apidoc/mdn/ code. It now runs all the way through,

utils/apidoc/mdn/crawl.js

 // TODO(jacobr): convert this file to Dart once Dart supports all of the
 // nodejs functionality used here.  For example, search for all occurences of
 // "http." and "fs."
 var http = require('http');
 var fs = require('fs');
 
 try {
   fs.mkdirSync('output/crawl');
 } catch (e) {
-  // It doesn't matter if the directories already exist.    
+  // It doesn't matter if the directories already exist.
 }
 
 var domTypes = JSON.parse(fs.readFileSync('data/domTypes.json', 'utf8'));
 
 var cacheData = {};
 
-function scrape(filename, link) { 
+function scrape(filename, link) {
   console.log(link);
   var httpsPrefix = "https://";
   var prefix = 'https://developer.mozilla.org/';
   var notFoundPrefix = 'https://developer.mozilla.org/Article_not_found?uri=';
   if (link.indexOf(prefix) != 0 ) {
     throw "Unexpected url: " + link;
   }
   var scrapePath = "/search?q=cache:" + link;
   // We crawl content from googleusercontent.com so we don't have to worry about
   // crawler politeness like we would have to if scraping developer.mozilla.org
@@ skipping 65 matching lines @@
   } else if (type == 'Notification') {
     link = 'https://developer.mozilla.org/en/DOM/notification';
   } else if (type == 'IDBDatabase') {
     link = 'https://developer.mozilla.org/en/IndexedDB/IDBDatabase'
   }
   if (link != null) {
     entry.push({index: 0, link: link, title: type});
     scrape(type + 0, link);
     continue;
   }
-  
+
   for (j = 0; j < items.length; j++) {
     var item = items[j];
     var prefix = 'https://developer.mozilla.org/';
     var notFoundPrefix = 'https://developer.mozilla.org/Article_not_found?uri=';
     // Be optimistic and replace article not found links with links to where the
     // article should be.
     link = item['link'];
     if (link.indexOf(notFoundPrefix) == 0) {
       link = prefix + link.substr(notFoundPrefix.length);
     }
 
     entry.push({index: j, link: link, title: item['title']});
     scrape(type + j, link);
   }
 }
 
 fs.writeFileSync('output/crawl/cache.json', JSON.stringify(cacheData, null, ' '), 'utf8');