perf(@angular-devkit/build-angular): load postcss-preset-env configuration once#20913
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clydin merged 1 commit intoangular:masterfrom May 24, 2021
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…ation once Loading the postcss-preset-env plugin includes building a mapping of unsupported browsers by feature, which is somewhat expensive. In large compilations, this mapping would be recomputed for each postcss-loader instance, as the plugin was recreated for each loader invocation. By extracting the plugin instance outside of the dynamic plugin computation, this overhead is avoided.
alan-agius4
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May 24, 2021
alan-agius4
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target: patch
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Loading the postcss-preset-env plugin includes building a mapping of unsupported
browsers by feature, which is somewhat expensive. In large compilations, this mapping
would be recomputed for each postcss-loader instance, as the plugin was recreated
for each loader invocation. By extracting the plugin instance outside of the dynamic
plugin computation, this overhead is avoided.