Last Updated: May 28, 2026.
window.customHelperHatData. Define it before the HelperHat install script loads, keep it plain-text or Markdown-like, and avoid secrets or highly sensitive personal data. HelperHat can use that context to provide more relevant answers during that customer's conversation.
www., and allows matching subdomains. For example, adding example.com can allow example.com, www.example.com, and subdomains such as shop.example.com. If you leave the list empty, the install code is not restricted by domain, so adding your official domains is recommended.
window.openHelperHat(). You can also use the direct chat link from Installation Instructions for buttons, menus, emails, QR codes, or printed materials.
businessId, the code is placed before the closing </body> tag or through your platform's custom-code area, and the current domain matches your trusted domains. Also check whether a browser extension, ad blocker, privacy blocker, content security policy, JavaScript error, cache, staging domain, or unpublished CMS change is preventing the script from loading.
txt, csv, md, json, html, htm, pdf, docx, xlsx, pptx, odp, odt, ods, xml, and xsl. Chat attachments support additional media types, but knowledge base uploads are limited to files where HelperHat can extract useful text.
window.customHelperHatData or a customer message. HelperHat does not automatically log into your website, read private dashboards, verify identities, or look up private customer records unless your website explicitly provides the relevant safe context.
window.customHelperHatData. Test from the installed widget so HelperHat receives the same current-page context your customers will have.
txt, csv, md, json, html, htm, pdf, docx, xlsx, pptx, odp, odt, ods, xml, xsl, jpg, jpeg, png, webp, heic, heif, gif, avif, mp4, and mov. A message can include up to 8 attachments, and each attachment is limited to 32MB after processing.
**text**, and can include links.