From 112261b8a764dd8677d4fc7ad96da96114fa3d72 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Radek=20=C5=A0er=C3=BD?= <radek.sery@peckadesign.cz>
Date: Mon, 27 May 2019 12:15:01 +0200
Subject: [PATCH]  #163 IE11 bug when absolute URL is used

- do not use new URL constructor, use custom function instead
- changed condition whether to use ajax when absolute URL is used
---
 nette.ajax.js | 40 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 36 insertions(+), 4 deletions(-)

diff --git a/nette.ajax.js b/nette.ajax.js
index 94cc8f7..518b2b6 100755
--- a/nette.ajax.js
+++ b/nette.ajax.js
@@ -15,6 +15,36 @@ if (typeof $ !== 'function') {
 	return console.error('nette.ajax.js: jQuery is missing, load it please');
 }
 
+	// Inspired by https://stackoverflow.com/questions/736513/how-do-i-parse-a-url-into-hostname-and-path-in-javascript
+	var getLocation = function(href) {
+		var k = ['protocol', 'hostname', 'host', 'pathname', 'port', 'search', 'hash', 'href'];
+		var a = document.createElement('a');
+
+		a.href = href;
+
+		// IE doesn't populate all link properties when setting .href with a relative URL,
+		// however .href will return an absolute URL which then can be used on itself
+		// to populate these additional fields.
+		if (a.host === '') {
+			a.href = a.href;
+		}
+
+		for (var r = {}, i = 0; i < k.length; i++) {
+			r[k[i]] = a[k[i]];
+		}
+
+		// IE doesn't return the leading / in pathname
+		if (r.pathname === '') {
+			r.pathname = '/';
+		} else if (r.pathname[0] !== '/') {
+			r.pathname = '/' + r.pathname;
+		}
+
+		r.toString = function() { return a.href; };
+
+		return r;
+	};
+
 var nette = function () {
 	var inner = {
 		self: this,
@@ -335,8 +365,10 @@ $.nette.ext('validation', {
 			// Check if URL is absolute
 			if (/(?:^[a-z][a-z0-9+.-]*:|\/\/)/.test(urlToValidate)) {
 				// Parse absolute URL
-				var parsedUrl = new URL(urlToValidate);
-				if (/:|^#/.test(parsedUrl['pathname'] + parsedUrl['search'] + parsedUrl['hash'])) return false;
+					var parsedUrl = getLocation(urlToValidate);
+					if (location.pathname === parsedUrl.pathname && location.search === parsedUrl.search && parsedUrl.hash) {
+						return false;
+					}
 			} else {
 				if (/:|^#/.test(urlToValidate)) return false;
 			}
@@ -400,7 +432,7 @@ $.nette.ext('forms', {
 				data[name + '.y'] = dataOffset[1];
 			}
 		}
-		
+
 		// https://developer.mozilla.org/en-US/docs/Web/Guide/Using_FormData_Objects#Sending_files_using_a_FormData_object
 		var formMethod = analyze.form.attr('method');
 		if (formMethod && formMethod.toLowerCase() === 'post' && 'FormData' in window) {
@@ -414,7 +446,7 @@ $.nette.ext('forms', {
 					formData.append(i, originalData[i]);
 				}
 			}
-			
+
 			// remove empty file inputs as these causes Safari 11 to stall
 			// https://stackoverflow.com/questions/49672992/ajax-request-fails-when-sending-formdata-including-empty-file-input-in-safari
 			if (formData.entries && navigator.userAgent.match(/version\/11(\.[0-9]*)? safari/i)) {