fixup 99512da9 and 493c1a65: show csslint rule info in issues info box

edit/lint.js

@@ -366,11 +366,11 @@ function showLintHelp() {
     ? 'https://stylelint.io/user-guide/rules/'
     // some CSSLint rules do not have a url
     : 'https://github.com/CSSLint/csslint/issues/535';
-  let headerLink, template;
+  let headerLink, template, csslintRules;
   if (linter === 'csslint') {
     headerLink = $createLink('https://github.com/CSSLint/csslint/wiki/Rules-by-ID', 'CSSLint');
     template = ruleID => {
-      const rule = linterConfig.allRuleIds.csslint.find(rule => rule.id === ruleID);
+      const rule = csslintRules.find(rule => rule.id === ruleID);
       return rule &&
         $create('li', [
           $create('b', $createLink(rule.url || baseUrl, rule.name)),
@@ -382,16 +382,20 @@ function showLintHelp() {
     headerLink = $createLink(baseUrl, 'stylelint');
     template = rule =>
       $create('li',
-        $createLink(baseUrl + rule, rule));
+        rule === 'CssSyntaxError' ? rule : $createLink(baseUrl + rule, rule));
   }
   const header = t('linterIssuesHelp', '\x01').split('\x01');
   const activeRules = new Set($$('#lint td[role="severity"]').map(el => el.dataset.rule));
-  return showHelp(t('linterIssues'),
-    $create([
-      header[0], headerLink, header[1],
-      $create('ul.rules', [...activeRules.values()].map(template)),
-    ])
-  );
+  Promise.resolve(linter !== 'csslint' || linterConfig.invokeWorker({action: 'getAllRuleInfos'}))
+    .then(data => {
+      csslintRules = data;
+      showHelp(t('linterIssues'),
+        $create([
+          header[0], headerLink, header[1],
+          $create('ul.rules', [...activeRules.values()].map(template)),
+        ])
+      );
+    });
 }
 
 function showLinterErrorMessage(title, contents, popup) {

vendor-overwrites/csslint/csslint-worker.js

@@ -10994,6 +10994,11 @@ self.onmessage = ({data: {action = 'run', code, config}}) => {
       self.postMessage(CSSLint.getRules().map(rule => rule.id));
       return;
 
+    case 'getAllRuleInfos':
+      // the functions are non-tranferable
+      self.postMessage(CSSLint.getRules().map(rule => JSON.parse(JSON.stringify(rule))));
+      return;
+
     case 'run':
       Object.defineProperty(config, 'errors', {get: () => 0, set: () => 0});
       config['uso-vars'] = 1;