DOMPurify 0.8.9 released

Got the following via the [DOMPurify-Security mailing list](https://lists.ruhr-uni-bochum.de/mailman/listinfo/dompurify-security): ``` *Intro* A new version of DOMPurify was released today: DOMPurify 0.8.9 *Background* DOMPurify showed weaknesses when handling both the recent Safari DOMParser XSS and a Firefox mXSS when working with document.write(). Caused by a broken logical check, not all browser bugs were being worked around correctly. *Fix* DOMPurify now performs better checks to mitigate both the Safari DOMParser XSS and a Firefox mXSS when using document.write(). *Packages* Updated packages are available here: https://github.com/cure53/DOMPurify/releases/tag/0.8.9 EOF ```