Serve JavaScript and WebAssembly modules by default. (#72)

Author: samuel-williams-shopify

lib/utopia/static/mime_types.rb

@@ -16,8 +16,11 @@ module Static
 			:media => [
 				:xiph, "mp3", "mp4", "wav", "aiff", "aac", "webm", "weba", "mov", "avi", "wmv", "mpg", "m3u8", "ts"
 			],
+			:scripts => [
+				"js", "mjs", "wasm"
+			],
 			:text => [
-				"html", "css", "js", "map", "txt", "rtf", "xml", "pdf"
+				"html", "css", "map", "txt", "rtf", "xml", "pdf"
 			],
 			:fonts => [
 				"otf", "eot", "ttf", "woff", "woff2"
@@ -29,7 +32,7 @@ module Static
 				"png", "gif", "jpeg", "tiff", "svg", "webp"
 			],
 			:default => [
-				:media, :text, :archive, :images, :fonts
+				:media, :scripts, :text, :archive, :images, :fonts
 			]
 		}
 

test/utopia/.static/module.mjs

@@ -0,0 +1 @@
+export default true;

test/utopia/.static/module.wasm

@@ -0,0 +1 @@
+WebAssembly

test/utopia/static.rb

@@ -35,6 +35,22 @@
 		expect(last_response.read).to be == "Uppercase extension!\n"
 	end
 
+	it "serves JavaScript modules" do
+		client.get "/module.mjs"
+		
+		expect(last_response.status).to be == 200
+		expect(last_response.headers["content-type"]).to be == "text/javascript"
+		expect(last_response.read).to be == "export default true;\n"
+	end
+	
+	it "serves WebAssembly modules" do
+		client.get "/module.wasm"
+		
+		expect(last_response.status).to be == 200
+		expect(last_response.headers["content-type"]).to be == "application/wasm"
+		expect(last_response.read).to be == "WebAssembly\n"
+	end
+	
 	it "serves HEAD requests without opening a response body" do
 		client.head "/test.txt"
 
@@ -272,10 +288,21 @@
 
 	describe Utopia::Static::MIME_TYPES do
 		let(:extensions) {Utopia::Static::MimeTypeLoader.extensions_for(subject[:default])}
+		let(:script_extensions) {Utopia::Static::MimeTypeLoader.extensions_for(subject[:scripts])}
+		
+		it "groups script extensions" do
+			expect(script_extensions).to have_keys(
+				".js" => be == "text/javascript",
+				".mjs" => be == "text/javascript",
+				".wasm" => be == "application/wasm",
+			)
+		end
 
 		it "should give the correct mime type" do
 			expect(extensions).to have_keys(
 				".txt" => be == "text/plain",
+				".mjs" => be == "text/javascript",
+				".wasm" => be == "application/wasm",
 				".webm" => be == "video/webm",
 				".weba" => be == "audio/webm",
 				".ogg" => be == "audio/vorbis",