Conditionally add unload event listener (enable bfcache) (#88)

Author: nikrom17

.github/workflows/publish.yml

@@ -30,10 +30,10 @@ jobs:
         if: github.ref_name == 'main'
         run: npm run release
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.KRAKENJS_PAYPAL_SDK_NPM_AUTH_TOKEN }}
 
       - name: Publish alpha to npm (non-main branch)
         if: github.ref_name != 'main'
         run: npm run release:alpha
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.KRAKENJS_PAYPAL_SDK_NPM_AUTH_TOKEN }}

src/logger.js

@@ -385,13 +385,16 @@ export function Logger({
       immediateFlush();
     });
 
-    window.addEventListener("unload", () => {
-      immediateFlush();
-    });
-
-    window.addEventListener("pagehide", () => {
-      immediateFlush();
-    });
+    // Use pagehide if available, fallback to unload
+    if ("onpagehide" in window) {
+      window.addEventListener("pagehide", () => {
+        immediateFlush();
+      });
+    } else {
+      window.addEventListener("unload", () => {
+        immediateFlush();
+      });
+    }
   }
 
   const logger = {