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.
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2025年聖誕節前夕，雨果在倫敦西部的夏洛特皇后與切爾西醫院（Queen Charlotte's and Chelsea Hospital）出生，體重接近7磅。，更多细节参见91视频
The 3614/3624 series established a number of conventions that are still in use
Жители Санкт-Петербурга устроили «крысогон»17:52