upgrade to node-sass 5.0 (adds support for node 15.x) #2841

dist/reveal.css

@@ -1,5 +1,5 @@
 /*!
-* reveal.js 4.0.2
+* reveal.js 4.1.0
 * https://revealjs.com
 * MIT licensed
 *

gulpfile.js

@@ -32,6 +32,8 @@ const banner = `/*!
 * Copyright (C) 2020 Hakim El Hattab, https://hakim.se
 */\n`
 
+sass.compiler = require('node-sass');
+
 // Prevents warnings from opening too many test pages
 process.setMaxListeners(20);
 

package.json

@@ -47,12 +47,13 @@
     "gulp-connect": "^5.7.0",
     "gulp-eslint": "^6.0.0",
     "gulp-header": "^2.0.9",
-    "gulp-sass": "^4.0.2",
+    "gulp-sass": "^4.1.0",
     "gulp-tap": "^2.0.0",
     "gulp-zip": "^5.0.1",
     "highlight.js": "^10.0.3",
     "marked": "^1.1.0",
     "node-qunit-puppeteer": "^2.0.1",
+    "node-sass": "^5.0.0",
     "qunit": "^2.10.0",
     "rollup": "^2.26.4",
     "rollup-plugin-terser": "^7.0.0",