Spec update: percent-encode more in fragments

Follows whatwg/url#347.

.gitignore

@@ -1,6 +1,7 @@
 # node specific
 node_modules/
 npm-debug.log
+package-lock.json
 
 # project specific
 coverage/

scripts/get-latest-platform-tests.js

@@ -19,7 +19,7 @@ process.on("unhandledRejection", err => {
 // 1. Go to https://github.com/w3c/web-platform-tests/tree/master/url
 // 2. Press "y" on your keyboard to get a permalink
 // 3. Copy the commit hash
-const commitHash = "5d149f011b36c84541186414c783f0ea18d14942";
+const commitHash = "3879b2314eac71afe1054a63d0260aa16b5502a5";
 
 // Have to use RawGit as JSDOM.fromURL checks Content-Type header.
 const urlPrefix = `https://rawgit.com/w3c/web-platform-tests/${commitHash}/url/`;

src/url-state-machine.js

@@ -87,17 +87,22 @@ function isC0ControlPercentEncode(c) {
   return c <= 0x1F || c > 0x7E;
 }
 
-const extraPathPercentEncodeSet = new Set([p(" "), p("\""), p("#"), p("<"), p(">"), p("?"), p("`"), p("{"), p("}")]);
-function isPathPercentEncode(c) {
-  return isC0ControlPercentEncode(c) || extraPathPercentEncodeSet.has(c);
-}
-
 const extraUserinfoPercentEncodeSet =
   new Set([p("/"), p(":"), p(";"), p("="), p("@"), p("["), p("\\"), p("]"), p("^"), p("|")]);
 function isUserinfoPercentEncode(c) {
   return isPathPercentEncode(c) || extraUserinfoPercentEncodeSet.has(c);
 }
 
+const extraFragmentPercentEncodeSet = new Set([p(" "), p("\""), p("<"), p(">"), p("`")]);
+function isFragmentPercentEncode(c) {
+  return isC0ControlPercentEncode(c) || extraFragmentPercentEncodeSet.has(c);
+}
+
+const extraPathPercentEncodeSet = new Set([p("#"), p("?"), p("{"), p("}")]);
+function isPathPercentEncode(c) {
+  return isFragmentPercentEncode(c) || extraPathPercentEncodeSet.has(c);
+}
+
 function percentEncodeChar(c, encodeSetPredicate) {
   const cStr = String.fromCodePoint(c);
 
@@ -1148,7 +1153,7 @@ URLStateMachine.prototype["parse fragment"] = function parseFragment(c) {
       this.parseError = true;
     }
 
-    this.url.fragment += percentEncodeChar(c, isC0ControlPercentEncode);
+    this.url.fragment += percentEncodeChar(c, isFragmentPercentEncode);
   }
 
   return true;