Project out of compile_commands.json with relative paths

Attached compile_commands.json generated from chromium build within QtWebEngine subfolder [qtwebengine/src/core/(debug/release)] with command: ninja -t compdb cc cxx > compile_commands.json.

The size of this file initially ~150Mb, and after loading only empty project is shown. So there is stripped down version (~100kb) in the attachment. It opens ok, project tree seems to be complete, but when I try to open any file error is raised about invalid path (see pic in attachment).