Inline sourceMappingURL not generated

Hi, noticed that latest version of MetroBundler doesn’t add inlined sourceMappingURL at the bottom. E.g. when running with RN0.54 which uses Metro 0.28.0 it doesn’t generate it.

When hitting http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false it produce the output but with no sourceMappingURL at the bottom.

Compare to RN0.53 which uses Metro 0.24.7 it generate the following bottomline: //# sourceMappingURL=http://localhost:8081/index.map?platform=ios&dev=true&minify=false

Is it desired behavior or something has changed in recent versions of metro bundler?

BTW seems that sourcemaps are available by hitting e.g. the following URL: http://localhost:8081/index.map?platform=ios&dev=true&minify=true&inlineSourceMap=false but where are the sourceMappingURL at the end?

I’m asking this because VSCode react-native extension relies on this logic here, so would be good if there will be an option to generate it.

Thanks in advance for looking at!

[rafeca]

Thanks for reporting! This was fixed by 2b32b08b13e879c2d4f8f53299c2048653fc62e9, but we haven’t released a new version of metro yet, I’m going to release 0.29.0 very soon

[justinwaite]

Is there anyway to force react-native to use a specific version of metro?