Whilst Penning this remedy, I needed to match exclusively on linebreaks rather than utilizing the s-flag (dotall - dot matches linebreaks). The websites commonly utilized to take a look at typical expressions behave in a different way when endeavoring to match on n or rn. 電腦作業系統版本過舊可能會造成使用上發生問題，請參閱下列步驟將作業系統升級為最新版本。 The CR was important https://www.linecl.com/