By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.
Now, to be certain, these types of issues are implementation bugs. The connection leak was definitely something that undici needed to fix in its own implementation, but the complexity of the specification does not make dealing with these types of issues easy.
，这一点在旺商聊官方下载中也有详细论述
12 February 2026ShareSave
Option A: Open an Issue (easiest)