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Warnings about missing source map files when used in ParcelJS + TypeScript project #202

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mdenburger opened this issue Mar 11, 2020 · 4 comments · Fixed by #230
Closed

Warnings about missing source map files when used in ParcelJS + TypeScript project #202

mdenburger opened this issue Mar 11, 2020 · 4 comments · Fixed by #230

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@mdenburger
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When use-http is used in a Parcel.js + TypeScript project, the build logs several warnings "could not load source file X in source map of node_modules/use-http/dist/Y"

To Reproduce
Create a new Parcel app with TypeScript that uses use-http:

  1. yarn init -y
  2. yarn add --dev parcel-bundler typescript
  3. add index.html:
<html>
<body>
  <script src="./index.ts"></script>
</body>
</html>
  1. add index.ts:
import useFetch from "use-http";

console.log('test', useFetch);
  1. Build and start:
    yarn run parcel index.html --open

Expected behavior
Parcel does not log any warnings.

Actual behavior
Parcel logs the following warnings:

⚠️  Could not load source file "../src/index.ts" in source map of "node_modules/use-http/dist/index.js".
⚠️  Could not load source file "../src/useMutation.ts" in source map of "node_modules/use-http/dist/useMutation.js".
⚠️  Could not load source file "../src/useFetch.ts" in source map of "node_modules/use-http/dist/useFetch.js".
⚠️  Could not load source file "../src/useQuery.ts" in source map of "node_modules/use-http/dist/useQuery.js".
⚠️  Could not load source file "../src/Provider.tsx" in source map of "node_modules/use-http/dist/Provider.js".
⚠️  Could not load source file "../src/FetchContext.ts" in source map of "node_modules/use-http/dist/FetchContext.js".
⚠️  Could not load source file "../src/types.ts" in source map of "node_modules/use-http/dist/types.js".
⚠️  Could not load source file "../src/utils.ts" in source map of "node_modules/use-http/dist/utils.js".
⚠️  Could not load source file "../src/doFetchArgs.ts" in source map of "node_modules/use-http/dist/doFetchArgs.js".
⚠️  Could not load source file "../src/useFetchArgs.ts" in source map of "node_modules/use-http/dist/useFetchArgs.js".
⚠️  Could not load source file "../useSSR.ts" in source map of "node_modules/use-ssr/dist/useSSR.js".
⚠️  Could not load source file "../src/index.ts" in source map of "node_modules/use-http/dist/index.js".
⚠️  Could not load source file "../src/useFetch.ts" in source map of "node_modules/use-http/dist/useFetch.js".
⚠️  Could not load source file "../src/useMutation.ts" in source map of "node_modules/use-http/dist/useMutation.js".
⚠️  Could not load source file "../src/useQuery.ts" in source map of "node_modules/use-http/dist/useQuery.js".
⚠️  Could not load source file "../src/Provider.tsx" in source map of "node_modules/use-http/dist/Provider.js".
⚠️  Could not load source file "../src/FetchContext.ts" in source map of "node_modules/use-http/dist/FetchContext.js".
⚠️  Could not load source file "../src/types.ts" in source map of "node_modules/use-http/dist/types.js".
⚠️  Could not load source file "../src/utils.ts" in source map of "node_modules/use-http/dist/utils.js".
⚠️  Could not load source file "../src/useFetchArgs.ts" in source map of "node_modules/use-http/dist/useFetchArgs.js".
⚠️  Could not load source file "../src/doFetchArgs.ts" in source map of "node_modules/use-http/dist/doFetchArgs.js".
⚠️  Could not load source file "../useSSR.ts" in source map of "node_modules/use-ssr/dist/useSSR.js".

Several Parcel.js issues (e.g. parcel-bundler/parcel#2356) suggest this is an issue of the published package.
@alex-cory
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Will take a look asap

@alex-cory
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alex-cory commented Mar 14, 2020 •
edited
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It would be nice if you can't get this working in a codesandbox, maybe make a repo reproducing the bug please 🙏❤️

@mdenburger
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Sure, I've pushed a small demo project to https://github.com/mdenburger/use-http-202.

@mattp94 mattp94 mentioned this issue Apr 1, 2020
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@alex-cory
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@mdenburger this should be fixed in v0.4.5

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fix: no source maps in production
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@mdenburger @alex-cory