Debugging XSLT vs Liquid in VS Code

Both the XSLT Debugger and DotLiquid Debugger let you step through a template and inspect variables. But they work differently under the hood — and those differences affect what you can do while debugging. The Fundamental Difference XSLT debugging is live. The XSLT Debugger supports two engines, each with its own instrumentation strategy: Saxon (XSLT 2.0/3.0) — exposes a TraceListener interface with Enter and Leave callbacks that fire as each instruction executes. The engine cooperates natively.