much better sketch resetting using DOM rebuild

docs/js/site/referrer.js

@@ -10,17 +10,15 @@
  * grabs your document.referrer value, which (unless Do
  * Not Track is enabled) will contain the location of
  * the page you were on before you clicked a link to this
- * page, and GETs that to my logger. That GET operation
- * comes from your computer, so will have your IP as part
- * of the HTTP headers.
+ * page, and GETs that to my logger.
  *
- * And that's all I really care about, because I want to
- * know how many people visit this page, and roughly where
- * they're from (gasp! IPs can be turned into rough
- * geographical location O_O).
+ * If you want to know what gets logged, have a look
+ * at the ./src/logger/logger.php file on github.
  *
- * If you want to know what logger.php looks like, hit up
- * github. It's in referrer/logger.php
+ * If that's too much effort:
+ * - the request URL
+ * - the referrer URL (if there is one)
+ * - the user agent
  *
  */
 (function referrer(l) {
@@ -32,20 +30,7 @@
   if (loc.indexOf("localhost") !== -1) return;
   // right, continue
   var url = "https://pomax.nihongoresources.com/pages/bezierinfo/logger.php";
-  var xhr = new XMLHttpRequest();
-  xhr.open(
-    "GET",
-    url +
-      "?" +
-      "referrer=" +
-      encodeURIComponent(document.referrer) +
-      "&for=" +
-      page,
-    true
-  );
-  try {
-    xhr.send(null);
-  } catch (e) {
-    /* you don't care about this error, and I can't see it, so why would we do anything with it? */
-  }
+  fetch(`${url}?referrer=${encodeURIComponent(document.referrer)}&for=${page}`)
+    .then((_) => {})
+    .catch((_) => {});
 })(window.location.toString());