Why do you think you need to change the permissions on your .htaccess file to begin with?
Are you trying to edit the .htaccess file in the root folder of your account? If so, if you see the contents, you will see it says DO NOT EDIT THIS FILE at the top, with instructions on what you should do instead. If so, then don’t try to edit the file, and follow the instructions shown to edit your .htaccess instead.
Please note that embedding resources on a website hosted with us on any other website is not possible due to this security system:
That said, please note a few things:
- Most “CORS errors” we see are not actually a problem with CORS, but another issue which just happens to generate an error related to CORS, but doesn’t actually need CORS to be fixed, and needs something else entirely. Examples include 404 errors, 403 errors and website URL configuration errors.
- CORS headers only affect other websites/domains trying to access resources on your website. It doesn’t affect your ability to embed resources from other websites. If you’re trying to embed resources from other sites and it’s not working, then please check with the operators of the other website if their CORS headers can be adjusted.
I’m sorry, but I’m not enough of a WordPress expert to be able to tell you why certain parts of a page might be “blurry”.