Hello! I’m trying to run the Rails UJS test suite off of master - when I visit localhost:4567 though the QUnit tests only get through ~40 tests before stopping, with a multitude of Ajax failures resulting from an HTTP 500 response. I’m seeing the following every time a test hits the
Rack::Lint::LintError at /echo rack.input #<StringIO:0x00007fa3bbe34a98> does not have ASCII-8BIT as its external encoding
I’m struggling to find more information on this error. I’m running Ruby 2.7 - since this is the master branch of Rails I’m guessing it’s an issue with my system but I’m not sure what I can do to fix it. Has anyone seen this before?