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1 files changed, 62 insertions, 0 deletions

diff --git a/node_modules/autoprefixer/lib/hacks/overscroll-behavior.js b/node_modules/autoprefixer/lib/hacks/overscroll-behavior.js
new file mode 100644
index 00000000..98ddb328
--- /dev/null
+++ b/node_modules/autoprefixer/lib/hacks/overscroll-behavior.js
@@ -0,0 +1,62 @@
+'use strict';
+
+function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }
+
+var Declaration = require('../declaration');
+
+var OverscrollBehavior = function (_Declaration) {
+    _inherits(OverscrollBehavior, _Declaration);
+
+    function OverscrollBehavior() {
+        _classCallCheck(this, OverscrollBehavior);
+
+        return _possibleConstructorReturn(this, _Declaration.apply(this, arguments));
+    }
+
+    /**
+     * Change property name for IE
+     */
+    OverscrollBehavior.prototype.prefixed = function prefixed(prop, prefix) {
+        return prefix + 'scroll-chaining';
+    };
+
+    /**
+     * Return property name by spec
+     */
+
+
+    OverscrollBehavior.prototype.normalize = function normalize() {
+        return 'overscroll-behavior';
+    };
+
+    /**
+     * Change value for IE
+     */
+
+
+    OverscrollBehavior.prototype.set = function set(decl, prefix) {
+        if (decl.value === 'auto') {
+            decl.value = 'chained';
+        } else if (decl.value === 'none' || decl.value === 'contain') {
+            decl.value = 'none';
+        }
+        return _Declaration.prototype.set.call(this, decl, prefix);
+    };
+
+    return OverscrollBehavior;
+}(Declaration);
+
+Object.defineProperty(OverscrollBehavior, 'names', {
+    enumerable: true,
+    writable: true,
+    value: ['overscroll-behavior', 'scroll-chaining']
+});
+
+
+module.exports = OverscrollBehavior;
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