diff --git a/package.json b/package.json
index 4eafd2e90..947aba27b 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,8 @@
     "test:unit": "NODE_OPTIONS=--inspect web-test-runner",
     "test:unit:win": "SET NODE_OPTIONS=--inspect & web-test-runner",
     "release": "yarn build && yarn publish",
-    "lint": "eslint . --ext .js"
+    "lint": "eslint . --ext .js",
+    "prepare": "yarn build"
   },
   "engines": {
     "node": ">= 18"
diff --git a/src/observers/page_observer.js b/src/observers/page_observer.js
index 934d45c45..27c8fc693 100644
--- a/src/observers/page_observer.js
+++ b/src/observers/page_observer.js
@@ -21,6 +21,11 @@ export class PageObserver {
       document.addEventListener("readystatechange", this.interpretReadyState, false)
       addEventListener("pagehide", this.pageWillUnload, false)
       this.started = true
+      if (document.readyState === "interactive") {
+        document.addEventListener("DOMContentLoaded", () => {
+          this.interpretReadyState()
+        }, { once: true })
+      }
     }
   }