TypeError: toAdd.contains is not a function at virtuallyAddElement (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:3917:36) at Tree.copyFromElement (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:3948:17) at Object.replaceDOMTree (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:4369:14) at Object.replacer (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:5223:45) at processNodeWithEngine (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:3156:42) at processNode (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:3361:27) at afterNode (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:2712:37) at domTraverse (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:2790:25) at translationReceived (/app/dist/lib/crawl2/dist/sandboxEngine3.6.js:8804:21) at /app/dist/lib/crawl2/dist/sandboxEngine3.6.js:9602:25