Access to Image from origin 'null' has been blocked by CORS policy

Question

I have JavaScript application in OpenLayers 3, and my base layer is created from local tiles. I work only in my computer so I do not know why I have CORS error.

Answer 1

Try to bypass CORS:

For Chrome: edit shortcut or with cmd: C:\Chrome.exe --disable-web-security

For Firefox: Open Firefox and type about:config into the URL bar. search for: security.fileuri.strict_origin_policy set to false