Fix patch

Author: sachinh-amazon

patches/sagemaker/validate-http-request-referer.diff

@@ -2,18 +2,17 @@ Index: code-editor-src/src/vs/server/node/remoteExtensionHostAgentServer.ts
 ===================================================================
 --- code-editor-src.orig/src/vs/server/node/remoteExtensionHostAgentServer.ts
 +++ code-editor-src/src/vs/server/node/remoteExtensionHostAgentServer.ts
-@@ -172,6 +172,21 @@ class RemoteExtensionHostAgentServer ext
+@@ -172,6 +172,13 @@ class RemoteExtensionHostAgentServer ext
  		if (pathname === '/vscode-remote-resource') {
  			// Handle HTTP requests for resources rendered in the rich client (images, fonts, etc.)
  			// These resources could be files shipped with extensions or even workspace files.
-+			
 +			if (req.headers.referer && req.headers.host) {
 +				const parsedRefererUrl = url.parse(req.headers.referer, true);
 +				if (parsedRefererUrl.host !== req.headers.host) {
 +					return serveError(req, res, 403, `Forbidden.`);
 +				}
 +			}
-+
++			
  			const desiredPath = parsedUrl.query['path'];
  			if (typeof desiredPath !== 'string') {
  				return serveError(req, res, 400, `Bad request.`);