TypeError: toAdd.contains is not a function at virtuallyAddElement (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:3900:40) at Tree.copyFromElement (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:3953:17) at Object.replaceDOMTree (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:4368:14) at Object.replacer (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:5222:45) at processNodeWithEngine (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:3155:42) at processNode (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:3360:27) at afterNode (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:2711:37) at domTraverse (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:2789:25) at translationReceived (/app/dist/lib/crawl2/dist/sandboxEngine3.5.js:8803:21) at /app/dist/lib/crawl2/dist/sandboxEngine3.5.js:9601:25