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fix(ssr): load sourcemaps alongside modules (fix: #3288) #11576

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merged 6 commits into from
Jan 16, 2023
Merged

fix(ssr): load sourcemaps alongside modules (fix: #3288) #11576

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74c9301
fix(ssr): load sourcemaps alongside modules
Vap0r1ze Jan 3, 2023
8223d3d
sourcemappingurl workaround
Vap0r1ze Jan 4, 2023
1502583
use genSourceMapUrl
Vap0r1ze Jan 11, 2023
52b212d
calculate offset
Vap0r1ze Jan 11, 2023
4f7e0e3
remove no longer needed workaround
Vap0r1ze Jan 12, 2023
faf5e78
fix lint issue
Vap0r1ze Jan 12, 2023
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16 changes: 15 additions & 1 deletion packages/vite/src/node/ssr/ssrModuleLoader.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -181,6 +181,18 @@ async function instantiateModule(
}
}

let sourceMapSuffix = ''
if (result.map) {
const moduleSourceMap = Object.assign({}, result.map, {
// offset the first three lines of the module (function declaration and 'use strict')
mappings: ';;;' + result.map.mappings,
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})
// The ${'//'} is to avoid being replaced by node/server/transformRequest
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sourceMapSuffix = `\n${'//'}# sourceMappingURL=data:application/json;charset=utf-8;base64,${Buffer.from(
JSON.stringify(moduleSourceMap),
).toString('base64')}`
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}

try {
// eslint-disable-next-line @typescript-eslint/no-empty-function
const AsyncFunction = async function () {}.constructor as typeof Function
Expand All @@ -191,7 +203,9 @@ async function instantiateModule(
ssrImportKey,
ssrDynamicImportKey,
ssrExportAllKey,
'"use strict";' + result.code + `\n//# sourceURL=${mod.url}`,
'"use strict";\n' +
result.code +
`\n//# sourceURL=${mod.url}${sourceMapSuffix}`,
)
await initModule(
context.global,
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