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chore: Add cache-control response header for docfx serve #10891

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chore: Add cache-control response header for docfx serve #10891

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11 changes: 11 additions & 0 deletions src/Docfx.App/RunServe.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,17 @@ public static IApplicationBuilder UseServe(this WebApplication app, string folde

// Fix the issue that .JSON file is 404 when running docfx serve
fileServerOptions.StaticFileOptions.ServeUnknownFileTypes = true;

// Set `Cache-Control` response header. (To avoid browser's default heuristic cache)
fileServerOptions.StaticFileOptions.OnPrepareResponse = ctx =>
{
var headers = ctx.Context.Response.GetTypedHeaders();
headers.CacheControl = new Microsoft.Net.Http.Headers.CacheControlHeaderValue
{
MaxAge = TimeSpan.FromSeconds(60),
};
};

return app.UseFileServer(fileServerOptions);
}

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