概要
WEBGL_debug_renderer_info is deprecated in Firefox and will be removed. Please use RENDERER. Build.loader.js:1:9894 [UnityCache] Failed to load 'http://localhost:51173/Build/Build.data.br' from indexedDB cache due to the error: TypeError: NetworkError when attempting to fetch resource. Build.loader.js:1:14524 Failed to download file Build/Build.data.br Build.loader.js:1:3110 Applying workaround to Firefox bug https://bugzilla.mozilla.org/show_bug.cgi?id=1397977 Build.loader.js:1:6569 navigator.mediaDevices support available Build.framework.js.br:3:4755 Uncaught (in promise) TypeError: e is undefined l http://localhost:51173/Build/Build.loader.js:1 promise callback*createUnityInstance/l/< http://localhost:51173/Build/Build.loader.js:1 callRuntimeCallbacks http://localhost:51173/Build/Build.framework.js.br:3 preRun http://localhost:51173/Build/Build.framework.js.br:3 run http://localhost:51173/Build/Build.framework.js.br:3 runCaller http://localhost:51173/Build/Build.framework.js.br:3 removeRunDependency http://localhost:51173/Build/Build.framework.js.br:3 receiveInstance http://localhost:51173/Build/Build.framework.js.br:3 receiveInstantiationResult http://localhost:51173/Build/Build.framework.js.br:3 promise callback*unityFramework/createWasm/instantiateAsync/< http://localhost:51173/Build/Build.framework.js.br:3 promise callback*instantiateAsync http://localhost:51173/Build/Build.framework.js.br:3 createWasm http://localhost:51173/Build/Build.framework.js.br:3 unityFramework http://localhost:51173/Build/Build.framework.js.br:3 l http://localhost:51173/Build/Build.loader.js:1 promise callback*l http://localhost:51173/Build/Build.loader.js:1 createUnityInstance http://localhost:51173/Build/Build.loader.js:1 createUnityInstance http://localhost:51173/Build/Build.loader.js:1 onload http://localhost:51173/:107 EventHandlerNonNull* http://localhost:51173/:106 Build.loader.js:1:5497
Unity で WebGL ビルドして Firefox で動作確認しようとしたら
上記のエラーが発生する現象に遭遇した
Project Settings の「Player > WebGL > Publishing Settings」を開いて
「Decompression Fallback」をオンにするか
「Compression Format」を「Gzip」にしてからビルドしたら
エラーが発生しなくなった