This regex may be stucked by input strings.

[2bdenny]

meteor/packages/markdown/showdown.js

Line 415 in 74b8c59

text = text.replace(/(\n\n[ ]{0,3}<!(--[^\r]*?--\s*)+>[ \t]*(?=\n{2,}))/g,hashElement);

We tested all regexes in the project and found this regex may be stucked by input strings like: \n\n<!--\n\n<!--------<\n\n<!------------------------------------->]Vx0\n\n\n------!!<\n\n\n\n]-----<!]Vx0\n\n-------<!

[hwillson]

Thanks @2bdenny - this is known. We're currently considering deprecating this (and the showdown) package from core.