Fix Webpack production mode compatibility (#6956)

* fix webpack prod mode compatibility

Closes #4359

* add a comment about ignoreGlobal

build/rollup_plugins.js

@@ -29,6 +29,9 @@ export const plugins = () => [
         include: 'src/shaders/index.js'
     }),
     commonjs({
+        // global keyword handling causes Webpack compatibility issues, so we disabled it:
+        // https://github.com/mapbox/mapbox-gl-js/pull/6956
+        ignoreGlobal: true,
         namedExports: {
             '@mapbox/whoots-js': ['getTileBBox']
         }

package.json

@@ -92,7 +92,7 @@
     "rollup": "^0.57.0",
     "rollup-plugin-browserify-transform": "^1.0.1",
     "rollup-plugin-buble": "^0.18.0",
-    "rollup-plugin-commonjs": "^8.2.6",
+    "rollup-plugin-commonjs": "^9.1.3",
     "rollup-plugin-json": "^2.3.0",
     "rollup-plugin-node-resolve": "3.0.0",
     "rollup-plugin-replace": "^2.0.0",

yarn.lock

@@ -3843,9 +3843,9 @@ estree-walker@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.3.1.tgz#e6b1a51cf7292524e7237c312e5fe6660c1ce1aa"
 
-estree-walker@^0.5.0:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.1.tgz#64fc375053abc6f57d73e9bd2f004644ad3c5854"
+estree-walker@^0.5.1:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.2.tgz#d3850be7529c9580d815600b53126515e146dd39"
 
 esutils@^2.0.2:
   version "2.0.2"
@@ -8762,14 +8762,13 @@ rollup-plugin-buble@^0.18.0:
     buble "^0.18.0"
     rollup-pluginutils "^2.0.1"
 
-rollup-plugin-commonjs@^8.2.6:
-  version "8.3.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.3.0.tgz#91b4ba18f340951e39ed7b1901f377a80ab3f9c3"
+rollup-plugin-commonjs@^9.1.3:
+  version "9.1.3"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-9.1.3.tgz#37bfbf341292ea14f512438a56df8f9ca3ba4d67"
   dependencies:
-    acorn "^5.2.1"
-    estree-walker "^0.5.0"
+    estree-walker "^0.5.1"
     magic-string "^0.22.4"
-    resolve "^1.4.0"
+    resolve "^1.5.0"
     rollup-pluginutils "^2.0.1"
 
 rollup-plugin-json@^2.3.0: