(build) browser build is CommonJS and IIFE, no more AMD (highlightjs#2511)

* (build) browser build is CommonJS and IIFE (global) now
* (build) dropping support for AMD, which we never truly supported
  properly in the first place
* (build) add test to make sure browser build works as commonJS module

  Resolves highlightjs#2505

Author: joshgoebel

.travis.yml

@@ -29,5 +29,7 @@ script:
       npm run test
     else
       npm run test-browser
+      # our browser build should also work fine as a Node.js CommonJS module
+      node test/builds/browser_build_as_commonjs.js
     fi
 sudo: false  # Use container-based architecture

CHANGES.md

@@ -1,3 +1,19 @@
+## Version 10.0.2 (pending)
+
+Brower build:
+
+- [Issue](https://github.com/highlightjs/highlight.js/issues/2505) (bug) Fix: Version 10 fails to load as CommonJS module. (#2511) [Josh Goebel][]
+- [Issue](https://github.com/highlightjs/highlight.js/issues/2505) (removal) AMD module loading support has been removed. (#2511) [Josh Goebel][]
+
+
+Parser Engine Changes:
+
+- ...
+
+
+[Josh Goebel]: https://github.com/yyyc514
+
+
 ## Version 10.0.1
 
 Parser Engine Changes:

test/builds/browser_build_as_commonjs.js

@@ -0,0 +1,6 @@
+const hljs = require("../../build/highlight");
+
+let major = parseInt(majorVersion=hljs.versionString.split("."))
+if (major != 10) {
+  process.exit(1)
+}

tools/build_config.js

@@ -29,7 +29,8 @@ module.exports = {
         },
         output: {
           name: "hljs",
-          format: "umd",
+          format: "iife",
+          footer: "if (typeof exports === 'object' && typeof module !== 'undefined') { module.exports = hljs; }",
           interop: false,
         }
       },