@twardoch, please could you provide an example with segfault that this commit fixes?

Well, I’ve vibe-coded an app https://github.com/twardoch/qlith which now works but was failing with the unpatched version of litehtml — but it’s hard for me to give any details, because I used Claude Sonnet to fix the issue.

Well, I've looked at your vibe-coded app. The issue in your container container_qt5::resolve_color. It must return empty string in case of color name is not resolved. Your function returns the input argument (color) when resolve is failed. So you get infinite recursion.

Sorry, I can't accept your PR. Just fix your container.

Thanks for taking the time to review :) I mainly needed a prototype for Qt integration, and I have one working now. Two orders of magnitude savings for an HTML renderer is nice (LiteHTML takes ~3 MB while QWebEngine is 150 MB+), and LiteHTML’s conformance does look decent.