diff --git a/yes.js b/yes.js
index 8aa95a2..bbf4c43 100644
--- a/yes.js
+++ b/yes.js
@@ -54,6 +54,7 @@ export class RasterizedYES {
         if (this._resizeHandler) {
             window.removeEventListener('resize', this._resizeHandler);
         }
+        clearTimeout(this._resizeDebounce);
     }
 
     setupCanvas() {
@@ -88,9 +89,23 @@ export class RasterizedYES {
         this.pixelRatio = pixelRatio;
 
         if (!this._resizeHandler) {
+            // Debounced, and a no-op if the size didn't actually
+            // change: assigning canvas.width/height clears the canvas
+            // even when set to its current value, and mobile Safari
+            // fires `resize` repeatedly *during* the address-bar
+            // hide/show animation (not once at the end), so an
+            // un-debounced handler was still clearing+redrawing on
+            // every one of those events even after the dimensions
+            // themselves became stable (see setupCanvas above).
             this._resizeHandler = () => {
-                this.setupCanvas();
-                this.rasterizeText();
+                clearTimeout(this._resizeDebounce);
+                this._resizeDebounce = setTimeout(() => {
+                    if (this.destroyed) return;
+                    const rect = this.rasterCanvas.parentElement.getBoundingClientRect();
+                    if (rect.width === this.displayWidth && rect.height === this.displayHeight) return;
+                    this.setupCanvas();
+                    this.rasterizeText();
+                }, 150);
             };
             window.addEventListener('resize', this._resizeHandler);
         }