this post was submitted on 17 Jan 2026
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They would point to the right lines if source maps were included in the build.
Oh, they are included in the build. But I still get error messages that don’t actually point to the line in the TS source file sometimes.
Maybe I have something configured wrong - TS projects always include a more config files of different kinds than I see in other languages I work in - but it happens.
If it's only rarely, it might just be some dumb caching issue, or it can be a build ordering issue. Like you have to be careful in Rollup configs or some tasks will mangle the code before a sourcemap is generated. Otherwise iirc it may have to be turned on in browser settings, though hopefully they're on by default these days.