diff --git a/lib/urlToRequest.js b/lib/urlToRequest.js
index 06c3cd0..ebdce9c 100644
--- a/lib/urlToRequest.js
+++ b/lib/urlToRequest.js
@@ -30,6 +30,9 @@ function urlToRequest(url, root) {
 			default:
 				throw new Error("Unexpected parameters to loader-utils 'urlToRequest': url = " + url + ", root = " + root + ".");
 		}
+	} else if(/^(?:https?:)?\/\//.test(url)) {
+		// Preserve http and https urls
+		request = url;
 	} else if(/^\.\.?\//.test(url)) {
 		// A relative url stays
 		request = url;
diff --git a/test/urlToRequest.test.js b/test/urlToRequest.test.js
index 6fa0a0e..5c53cad 100644
--- a/test/urlToRequest.test.js
+++ b/test/urlToRequest.test.js
@@ -13,6 +13,9 @@ ExpectedError.prototype.matches = function(err) {
 describe("urlToRequest()", () => {
 	[
 		// without root
+		[["//google.com"], "//google.com", "should handle scheme-agnostic urls"],
+		[["http://google.com"], "http://google.com", "should handle http urls"],
+		[["https://google.com"], "https://google.com", "should handle https urls"],
 		[["path/to/thing"], "./path/to/thing", "should handle implicit relative urls"],
 		[["./path/to/thing"], "./path/to/thing", "should handle explicit relative urls"],
 		[["~path/to/thing"], "path/to/thing", "should handle module urls (with ~)"],