I’m suddenly getting a 404 error on the file undefinedpageWebRequest.js file my website tries to load. I have no idea what the .js is for, why the 404 is showing up (I didn’t delete any files from FTP?) and I also can’t find anything about the file on Google.
Also when I run my page through Google Mobile tool I get about 6 errors. How can I go around and fix this? I have no idea where to begin in the first place.
Website URL: www.melvinosenga.nl/home
Read more here: WordPress page loading errors – 404 undefinedpageWebRequest.js