From 4bf9a457844e360187dc2b37bf164a3b3a58e73a Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Sun, 30 Aug 2020 20:40:28 +0000
Subject: [PATCH] Fix right panel on Safari browser (overflow: auto + position: fixed)

---
 common.js |   47 +++++++++++++++++++++++++----------------------
 1 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/common.js b/common.js
index 964cf68..4c7b840 100644
--- a/common.js
+++ b/common.js
@@ -22,29 +22,32 @@
  ********/
 
 function Deferred(promise, request) {
-	return {
-		promise: promise,
-		request: request,
-		abort: function() {
-			request.abort.bind(request);
-			return Deferred(promise, request);
-		},
-		done: function(func) {
-			return Deferred(promise.then(func), request);
-		},
-		fail: function(func) {
-			return Deferred(promise.catch(func), request);
-		},
-		always: function(func) {
-			return Deferred(promise.finally(func), request);
-		},
-	};
+	this.promise = promise;
+	this.request = request;
 }
-
+Deferred.prototype = {
+	promise: null,
+	request: null,
+	abort: function() {
+		this.request.abort.bind(this.request);
+		return new Deferred(this.promise, this.request);
+	},
+	done: function(func) {
+		return new Deferred(this.promise.then(func), this.request);
+	},
+	fail: function(func) {
+		return new Deferred(this.promise.catch(func), this.request);
+	},
+	always: function(func) {
+		return new Deferred(this.promise.finally(func), this.request);
+	},
+};
 Deferred.all = function(iterable) {
-	return Deferred(
+	return new Deferred(
 		Promise.all(
-			iterable.map(x => x.promise)
+			iterable.map(function(x) {
+				return x.promise;
+			})
 		)
 	);
 };
@@ -56,6 +59,7 @@
 		var self = this;
 		var request = new XMLHttpRequest();
 		var promise = new Promise(function(resolve, reject) {
+			request.open('GET', url, true);
 			request.timeout = self.timeout;
 			request.onreadystatechange = function() {
 				if(this.readyState == 4) {
@@ -70,10 +74,9 @@
 					}
 				}
 			};
-			request.open('GET', url, true);
 			request.send();
 		});
-		return Deferred(promise, request);
+		return new Deferred(promise, request);
 	},
 };
 

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