Lots of "Could not download sourcemap" messages in debug console when running extension

[DanTup]

I've just updated my Insiders build to work on some debugging changes and when I press F5 run to my extension I get a lot of spammy messages in the debug console (of the main host) like this:

SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\configuration-editing\out/extension.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\configuration-editing\out/settingsDocumentHelper.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\extension-editing\out/extension.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\extension-editing\out/packageDocumentHelper.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\javascript\out/features\jsonContributions.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\javascript\out/features\bowerJSONContribution.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\javascript\out/javascriptMain.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\extension-editing\out/extensionLinter.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\javascript\out/features\packageJSONContribution.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\json\client\out/jsonMain.js.map
SourceMaps.loadSourceMapContents: Could not download sourcemap from https://ticino.blob.core.windows.net/sourcemaps/ed9fe0c1823a8decaf6297fae2cd3f2215c5a4e8/extensions\javascript\out/features\markedTextUtil.js.map

I'm not sure where this is all coming from - I don't recognise any of the filenames on the end there and Dart Code (the extension I'm working on) is the only extension I have installed.

[isidorn]

Looks like microsoft/vscode-chrome-debug-core#205
Forwarding to @roblourens

[roblourens]

That's saying that it can't download sourcemaps for the builtin extensions running in the extensionHost (which you're debugging). It looks like something weird happened with that build, and the sourcemaps weren't published. I see them for the later builds, though, so it should be ok now. The warning is useful when it's a problem with the user's code...

[DanTup]

Thanks for confirming, I'll try with an updated build next week and post back if they're still appearing. Cheers!

[chongchai]

@roblourens @DanTup I test it in 1.17.2 and latest 1.18 release.
still get "Could not download sourcemap" messages. Is this problem solved now?

[roblourens]

This was an issue in one particular insiders build, please open a new issue with more details.