inline loaderUtils.isUrlRequest given new behaviour >=3.0.0 is unsuitable

Author: bholloway

packages/resolve-url-loader/lib/value-processor.js

@@ -7,6 +7,36 @@
 var path        = require('path'),
     loaderUtils = require('loader-utils');
 
+/**
+ * We require the lost functionality from loaderUtils.isUrlRequest()@>=3.0.0
+ * https://github.com/webpack/loader-utils/blob/47d0be719a8243e7805e8070fcec857427529508/lib/isUrlRequest.js
+ */
+function isUrlRequest(url, root) {
+  // An URL is not an request if
+
+  // 1. It's an absolute url and it is not `windows` path like `C:\dir\file`
+  if (/^[a-z][a-z0-9+.-]*:/i.test(url) && !path.win32.isAbsolute(url)) {
+    return false;
+  }
+
+  // 2. It's a protocol-relative
+  if (/^\/\//.test(url)) {
+    return false;
+  }
+
+  // 3. It's some kind of url for a template
+  if (/^[{}[\]#*;,'§$%&(=?`´^°<>]/.test(url)) {
+    return false;
+  }
+
+  // 4. It's also not an request if root isn't set and it's a root-relative url
+  if ((root === undefined || root === false) && /^\//.test(url)) {
+    return false;
+  }
+
+  return true;
+}
+
 /**
  * Create a value processing function for a given file path.
  *
@@ -117,7 +147,7 @@ function valueProcessor({ join, root, directory }) {
    * @return {boolean} True for relative uri
    */
   function testIsRelative(uri) {
-    return !!uri && loaderUtils.isUrlRequest(uri, false) && !path.isAbsolute(uri) && (uri.indexOf('~') !== 0);
+    return !!uri && isUrlRequest(uri, false) && !path.isAbsolute(uri) && (uri.indexOf('~') !== 0);
   }
 
   /**
@@ -128,7 +158,7 @@ function valueProcessor({ join, root, directory }) {
    * @return {boolean} True for absolute uri
    */
   function testIsAbsolute(uri) {
-    return !!uri && (typeof root === 'string') && loaderUtils.isUrlRequest(uri, root) &&
+    return !!uri && (typeof root === 'string') && isUrlRequest(uri, root) &&
       (/^\//.test(uri) || path.isAbsolute(uri));
   }
 }