The issue seems unrelated to the file parsing, but rather to the file not existing on the file system (I guess maybe a typo from the user), as in fact it gets appended to the slice directly (previous line 741). The resolver file format (one resolver per line) is common to all tools, if we want to support comma separated resolvers on the same line within file, maybe we should move this to utils. What do you think?
Originally posted by @Mzack9999 in projectdiscovery/httpx#2351 (comment)