From be87b47469b6111411fdb9aab538dceb573f6dfd Mon Sep 17 00:00:00 2001
From: Michael Gibson <michael.gibson@techcyte.com>
Date: Mon, 10 Mar 2025 11:19:44 -0600
Subject: [PATCH] Make load code more robust to out of image panning

---
 src/tiledimage.js | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/tiledimage.js b/src/tiledimage.js
index fb6a12ac..b350063f 100644
--- a/src/tiledimage.js
+++ b/src/tiledimage.js
@@ -1086,10 +1086,16 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
     },
 
     getLoadArea: function() {
-        var viewport = this.viewport;
-        var bounds = viewport.getBounds(false);
-        var drawArea = bounds.getBoundingBox();
-        return drawArea;
+        var loadArea = this._viewportToTiledImageRectangle(
+            this.viewport.getBoundsWithMargins(false));
+
+        if (!this.wrapHorizontal && !this.wrapVertical) {
+            var tiledImageBounds = this._viewportToTiledImageRectangle(
+            this.getClippedBounds(false));
+            loadArea = loadArea.intersection(tiledImageBounds);
+        }
+
+        return loadArea;
     },
 
     /**
@@ -1647,10 +1653,12 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
         var updatedTiles = this._updateDrawArea(level,
             levelVisibility, drawArea, currentTime);
 
-        var bestTiles = this._updateLoadArea(level, loadArea, currentTime, best);
+        if (loadArea) {
+            best = this._updateLoadArea(level, loadArea, currentTime, best);
+        }
 
         return {
-            bestTiles: bestTiles,
+            bestTiles: best,
             updatedTiles: updatedTiles
         };
     },