These optimizations are difficult to implement, frequently error-prone, and lead to inconsistent behavior across runtimes. Bun's "Direct Streams" optimization takes a deliberately and observably non-standard approach, bypassing much of the spec's machinery entirely. Cloudflare Workers' IdentityTransformStream provides a fast-path for pass-through transforms but is Workers-specific and implements behaviors that are not standard for a TransformStream. Each runtime has its own set of tricks and the natural tendency is toward non-standard solutions, because that's often the only way to make things fast.
2026年2月19日，川东小镇一隅。每年春节，我们都会回到这里看望外公外婆。（南方周末记者陈怡帆｜摄）。safew官方版本下载对此有专业解读
，这一点在同城约会中也有详细论述
Global news & analysis，这一点在safew官方版本下载中也有详细论述
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