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Add .webmanifest MIME type to Wasm.web.config for PWA support on Azure #121932

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Add .webmanifest MIME type to Wasm.web.config for PWA support on Azure #121932

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2 changes: 2 additions & 0 deletions src/mono/nuget/Microsoft.NET.Sdk.WebAssembly.Pack/build/Wasm.web.config
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
<remove fileExtension=".webcil" />
<remove fileExtension=".json" />
<remove fileExtension=".wasm" />
<remove fileExtension=".webmanifest" />
<remove fileExtension=".woff" />
<remove fileExtension=".woff2" />
<mimeMap fileExtension=".blat" mimeType="application/octet-stream" />
Expand All @@ -16,6 +17,7 @@
<mimeMap fileExtension=".dat" mimeType="application/octet-stream" />
<mimeMap fileExtension=".json" mimeType="application/json" />
<mimeMap fileExtension=".wasm" mimeType="application/wasm" />
<mimeMap fileExtension=".webmanifest" mimeType="application/manifest+json" />
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Copilot AI Nov 24, 2025

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[nitpick] Consider enabling HTTP compression for .webmanifest files to improve load performance. Since the MIME type is application/manifest+json (JSON-based), these files are text-based and compress well.

Add the following line to the <httpCompression><dynamicTypes> section (around line 27):

<add mimeType="application/manifest+json" enabled="true" />

Note: While .json files (which use application/json) are not currently compressed in this config, enabling compression for manifest files would be beneficial as they are typically downloaded on initial page load for PWA functionality.

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<mimeMap fileExtension=".woff" mimeType="application/font-woff" />
<mimeMap fileExtension=".woff2" mimeType="application/font-woff" />
</staticContent>
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