diff --git a/addons/web/static/src/core/position_hook.js b/addons/web/static/src/core/position_hook.js
index 0d87c7e78be..01d626469ad 100644
--- a/addons/web/static/src/core/position_hook.js
+++ b/addons/web/static/src/core/position_hook.js
@@ -339,9 +339,11 @@ export function usePosition(target, options) {
             // Attach listeners to keep the positioning up to date
             const targetDocument = getTarget()?.ownerDocument;
             targetDocument?.addEventListener("scroll", throttledUpdate, { capture: true });
+            targetDocument?.addEventListener("load", throttledUpdate, { capture: true });
             window.addEventListener("resize", throttledUpdate);
             return () => {
                 targetDocument?.removeEventListener("scroll", throttledUpdate, { capture: true });
+                targetDocument?.removeEventListener("load", throttledUpdate, { capture: true });
                 window.removeEventListener("resize", throttledUpdate);
             };
         }
diff --git a/addons/web/static/src/views/fields/image/image_field.scss b/addons/web/static/src/views/fields/image/image_field.scss
index ba7dadf6d7b..01016fde7a9 100644
--- a/addons/web/static/src/views/fields/image/image_field.scss
+++ b/addons/web/static/src/views/fields/image/image_field.scss
@@ -22,7 +22,7 @@
 
 .o_image_zoom {
     img {
-        max-width: 50vw;
+        max-width: 100%;
         max-height: 50vh;
     }
 }
diff --git a/addons/web/static/tests/core/position_hook_tests.js b/addons/web/static/tests/core/position_hook_tests.js
index 7a973d92d05..cdf987fd1af 100644
--- a/addons/web/static/tests/core/position_hook_tests.js
+++ b/addons/web/static/tests/core/position_hook_tests.js
@@ -333,6 +333,18 @@ QUnit.test("has no effect when component is destroyed", async (assert) => {
     );
 });
 
+QUnit.test("reposition popper when a load event occurs", async (assert) => {
+    const TestComp = getTestComponent({
+        onPositioned: () => {
+            assert.step("onPositioned called");
+        },
+    });
+    await mount(TestComp, container);
+    assert.verifySteps(["onPositioned called"], "onPositioned called when component mounted");
+    await document.querySelector('[id="popper"]').dispatchEvent(new Event("load"));
+    assert.verifySteps(["onPositioned called"], "onPositioned called when load event is triggered");
+});
+
 QUnit.test("is positioned relative to its containing block", async (assert) => {
     const fixtureBox = getFixture().getBoundingClientRect();
     // offset the container