web/ffmpeg: don't return an empty blob
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@@ -87,6 +87,7 @@ export default class FFmpegWrapper {
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{ type: output.type }
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{ type: output.type }
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);
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);
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if (renderBlob.size === 0) return;
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return renderBlob;
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return renderBlob;
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}
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}
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}
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}
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