This PR:

implements a test to download favicons for top 500 domains (according to moz.com)
- fetching failed for 48 domains, 19 of which were false positives, and 29 of which were real issues
- detailed report can be found below
- all unfixed problems have been reported as separate issues
- https://github.com/limesquid/favicon-thief/issues/10
- https://github.com/limesquid/favicon-thief/issues/11
- https://github.com/limesquid/favicon-thief/issues/12
- https://github.com/limesquid/favicon-thief/issues/13
- https://github.com/limesquid/favicon-thief/issues/14
- https://github.com/limesquid/favicon-thief/issues/15
- https://github.com/limesquid/favicon-thief/issues/16
- https://github.com/limesquid/favicon-thief/issues/17
fixes fetching icons for 15 out of 29 failing domains (1 domain fixed "accidentally" - brandbucket.com)
upgrades all dependencies (with exception of https://github.com/limesquid/favicon-thief/issues/9)
adds error logging when process.env.NODE_ENV === "test" - this is essential to quickly debug almost all of issues found here

Report

A checked checkbox means that the case has been fixed in this PR.

False positives

Manually checked.