Fix linting issues

content/install-hook-userstyles.js

@@ -341,7 +341,7 @@
 
 // run in page context
 document.documentElement.appendChild(document.createElement('script')).text = '(' + (
-  EXTENSION_ORIGIN => {
+  () => {
     document.currentScript.remove();
 
     // spoof Stylish extension presence in Chrome

edit/linter-meta.js

@@ -12,7 +12,7 @@ function createMetaCompiler(cm) {
     if (_cm !== cm) {
       return;
     }
-    const match = text.match(/\/\*\!?\s*==userstyle==[\s\S]*?==\/userstyle==\s*\*\//i);
+    const match = text.match(/\/\*!?\s*==userstyle==[\s\S]*?==\/userstyle==\s*\*\//i);
     if (!match) {
       return [];
     }

edit/source-editor.js

@@ -245,10 +245,9 @@ function createSourceEditor({style, onTitleChanged}) {
                 .then(saved => saved !== code && messageBox.alert(t('syncStorageErrorSaving'))));
             return;
           }
-        }
-
           contents[0] += ` (line ${pos.line + 1} col ${pos.ch + 1})`;
           contents.push($create('pre', meta));
+        }
         messageBox.alert(contents, 'pre');
       });
   }

js/usercss.js

@@ -10,7 +10,7 @@ const usercss = (() => {
     // updateURL: 'updateUrl',
     name: undefined,
   };
-  const RX_META = /\/\*\!?\s*==userstyle==[\s\S]*?==\/userstyle==\s*\*\//i;
+  const RX_META = /\/\*!?\s*==userstyle==[\s\S]*?==\/userstyle==\s*\*\//i;
   const ERR_ARGS_IS_LIST = new Set(['missingMandatory', 'missingChar']);
   return {buildMeta, buildCode, assignVars};
 

popup/popup.js

@@ -144,7 +144,7 @@ function initPopup() {
           info.appendChild(noteNode);
         }
         // Inaccessible locally hosted file type, e.g. JSON, PDF, etc.
-        if (tabURL.length - tabURL.lastIndexOf(".") <= 5) {
+        if (tabURL.length - tabURL.lastIndexOf('.') <= 5) {
           info.appendChild($create('p', t('InaccessibleFileHint')));
         }
         document.body.classList.add('unreachable');

popup/search-results.js

@@ -1,6 +1,6 @@
 /* global tabURL handleEvent $ $$ prefs template FIREFOX chromeLocal debounce
   $create t API tWordBreak formatDate tryCatch tryJSONparse LZString
-  ignoreChromeError */
+  ignoreChromeError download */
 'use strict';
 
 window.addEventListener('showStyles:done', function _() {