When I am building a sitemap to scrape data I have used the Regex Expressions (?<=\ ).* and -^.*() to separate information before and after a specific character. I have recently run into the error message "JavaScript does not support regular expressions that can match 0 characters". Is this an error due to the makeup of the web page I am trying to scrape? Or has something changed on the Webscraper application that is interfering with these regex expressions? Any suggestions or information would be much appreciated.
Hard to guess what you're trying to do without better examples, some HTML or the URL. Anyway the second regex does not look valid; if you're trying to match the literal ^ character, you will need to escape it \^
If you're trying to create a regex look-ahead, that is not correct either.