diff --git a/tracker/tracker-assist/src/CallWindow.ts b/tracker/tracker-assist/src/CallWindow.ts
index 73833eda1..30a69f291 100644
--- a/tracker/tracker-assist/src/CallWindow.ts
+++ b/tracker/tracker-assist/src/CallWindow.ts
@@ -12,7 +12,7 @@ export default class CallWindow {
     const iframe = this.iframe = document.createElement('iframe');
     Object.assign(iframe.style, {
       position: "absolute",
-      zIndex: "999999",
+      zIndex: 2147483647 - 1,
       //borderRadius: ".25em .25em .4em .4em",
       //border: "4px rgba(0, 0, 0, .7)",
       border: "none",
diff --git a/tracker/tracker-assist/src/confirm.ts b/tracker/tracker-assist/src/confirm.ts
index b5485ea86..a7da63abd 100644
--- a/tracker/tracker-assist/src/confirm.ts
+++ b/tracker/tracker-assist/src/confirm.ts
@@ -59,6 +59,7 @@ export default class Confirm {
       height: "100%",
       width: "100%",
       pointerEvents: "none",
+      zIndex: 2147483647 - 1,
     })
 
     wrapper.appendChild(popup);