1 files changed, 68 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/shims/adnexus-prebid.js b/browser/extensions/webcompat/shims/adnexus-prebid.js
new file mode 100644
index 0000000000..42dff7b2ad
--- /dev/null
+++ b/browser/extensions/webcompat/shims/adnexus-prebid.js
@@ -0,0 +1,68 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Bug 1694401 - Shim Prebid.js
+ *
+ * Some sites rely on prebid.js to place content, perhaps in conjunction with
+ * other services like Google Publisher Tags and Amazon TAM. This shim prevents
+ * site breakage like image galleries breaking as the user browsers them, by
+ * allowing the content placement to succeed.
+ */
+
+if (!window.pbjs?.requestBids) {
+  const que = window.pbjs?.que || [];
+  const cmd = window.pbjs?.cmd || [];
+  const adUnits = window.pbjs?.adUnits || [];
+
+  window.pbjs = {
+    adUnits,
+    addAdUnits(arr) {
+      if (!Array.isArray(arr)) {
+        arr = [arr];
+      }
+      adUnits.push(arr);
+    },
+    cmd,
+    offEvent() {},
+    que,
+    refreshAds() {},
+    removeAdUnit(codes) {
+      if (!Array.isArray(codes)) {
+        codes = [codes];
+      }
+      for (const code of codes) {
+        for (let i = adUnits.length - 1; i >= 0; i--) {
+          if (adUnits[i].code === code) {
+            adUnits.splice(i, 1);
+          }
+        }
+      }
+    },
+    renderAd() {},
+    requestBids(params) {
+      params?.bidsBackHandler?.();
+    },
+    setConfig() {},
+    setTargetingForGPTAsync() {},
+  };
+
+  const push = function(fn) {
+    if (typeof fn === "function") {
+      try {
+        fn();
+      } catch (e) {
+        console.trace(e);
+      }
+    }
+  };
+
+  que.push = push;
+  cmd.push = push;
+
+  que.forEach(push);
+  cmd.forEach(push);
+}