1 files changed, 20 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/ContextDependency.js b/node_modules/webpack/lib/dependencies/ContextDependency.js
index 7f8772a55..55bc9823c 100644
--- a/node_modules/webpack/lib/dependencies/ContextDependency.js
+++ b/node_modules/webpack/lib/dependencies/ContextDependency.js
@@ -4,6 +4,7 @@
 */
 "use strict";
 const Dependency = require("../Dependency");
+const CriticalDependencyWarning = require("./CriticalDependencyWarning");
 
 class ContextDependency extends Dependency {
 	constructor(request, recursive, regExp) {
@@ -13,6 +14,13 @@ class ContextDependency extends Dependency {
 		this.recursive = recursive;
 		this.regExp = regExp;
 		this.async = false;
+
+		this.hadGlobalOrStickyRegExp = false;
+		if(this.regExp.global || this.regExp.sticky) {
+			this.regExp = null;
+			this.hadGlobalOrStickyRegExp = true;
+		}
+
 	}
 
 	isEqualResource(other) {
@@ -24,6 +32,18 @@ class ContextDependency extends Dependency {
 			this.regExp === other.regExp &&
 			this.async === other.async;
 	}
+
+	getWarnings() {
+		let warnings = super.getWarnings() || [];
+		if(this.critical) {
+			warnings.push(new CriticalDependencyWarning(this.critical));
+		}
+		if(this.hadGlobalOrStickyRegExp) {
+			warnings.push(new CriticalDependencyWarning("Contexts can't use RegExps with the 'g' or 'y' flags."));
+		}
+		return warnings;
+	}
+
 }
 
 module.exports = ContextDependency;