This scipt can be used as a bookmarklet.
Executing the script gives a user the ability to save and search live chats as they appear on a channel.
How it works: Initializing the script adds a mutation observer to the chat window pane. New chats are pushed into an array. chatArr = [[badges], username, first_mention, chat_text, timestamp, html_data]
A small search window allows users to earch by chat text or username
Notes: Chats are only saved from the time you execute the script. I intentionnaly avoided using forEach and map functions to reduce operation time, but I built and tested this script on a high end machine, so your results may vary.
Search button is redundant. Script automatically starts searching on the 3rd character. Saving logs saves the entire log as a multi-dimentional array.