The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.
Avoiding specific road types or toll roads.，更多细节参见Safew下载
。Line官方版本下载对此有专业解读
何小鹏有这个行业判断，理由有二。，详情可参考搜狗输入法2026
Nov 25, 2025: Google initially determined this behavior was intended. We pushed back.
Tiny chunks (100B × 10000)