diff --git a/RoboFile.php b/RoboFile.php
index 29c6c1f..6a093a8 100644
--- a/RoboFile.php
+++ b/RoboFile.php
@@ -159,10 +159,11 @@ class RoboFile extends \Robo\Tasks {
 
     public function constants(): Result {
         $c = $this->collectionBuilder()->addCode(function() {
+            $out = ['elem' => [], 'attr' => []];
             $elems = [];
-            $atrs = [];
-            // retrieve the single-page HTML specification (this is around 15MB in size)
-            $spec = file_get_contents("https://html.spec.whatwg.org/");
+            $attrs = [];
+            // retrieve the single-page HTML specification (this is around 12MB in size)
+            $spec = file_get_contents("html.html"); //$spec = file_get_contents("https://html.spec.whatwg.org/");
             // parse it (this may take several seconds
             if ($spec) {
                 $p = new DOMParser;
@@ -186,7 +187,11 @@ class RoboFile extends \Robo\Tasks {
                         }
                     }
                 }
+                // do a second pass over what's been collected to find global attributes and normalize them to a single "*" entry
             }
+            //$spec = file_get_contents("aria.html"); //$spec = file_get_contents("https://www.w3.org/TR/wai-aria/");
+            //$spec = file_get_contents("svg-elem.html"); //$spec = file_get_contents("https://www.w3.org/TR/SVG2/eltindex.html");
+            //$spec = file_get_contents("svg-attr.html"); //$spec = file_get_contents("https://www.w3.org/TR/SVG2/attindex.html");
             // sort and filter the results for unqiueness
             sort($elems);
             ksort($attrs);
diff --git a/composer.json b/composer.json
index 76699d3..93da626 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "mensbeam/html-sanitizr",
+    "name": "mensbeam/html-sanitizer",
     "description": "An implementation of the HTML Sanitizer API",
     "keywords": ["whatwg", "html", "html5", "sanitizer", "dom"],
     "type": "library",
diff --git a/lib/AbstractSanitizer.php b/lib/AbstractSanitizer.php
index 391c8c3..7c9fb86 100644
--- a/lib/AbstractSanitizer.php
+++ b/lib/AbstractSanitizer.php
@@ -777,6 +777,11 @@ abstract class AbstractSanitizer {
         # To determine the sanitize action for an attribute given a Sanitizer
         #   configuration dictionary config, run these steps:
         # Let kind be attribute’s attribute kind.
+            # The attribute kind of an attribute is one of regular
+            #   or unknown. Let attribute kind be:
+            # - unknown, if the [HTML] specification does not assign any
+            #   meaning to attribute’s name.
+            # - regular, otherwise.
         # If kind is unknown and if config["allowUnknownMarkup"] does not exist or it config["allowUnknownMarkup"] is false: Return drop.
         # If kind is regular and attribute’s local name does not match any name in the baseline attribute allow list: Return drop.
         # If attribute matches any attribute match list in config’s attribute drop list: Return drop.