Magento 2 CSS/JS error in frontend and backend

Question

It first started after i set https://(My_Domain_Name).com into Configuration > Web > Base URLs & Base URLs (Secure) > Base URL for Static View Files & Secure Base URL for Static View Files (I'm not even sure if this is the cause). I tried several solutions including: (Solutions from similar problems in stackexchange)

1) Go to pub/static folder and remove everything, except .htaccess file. Open up app/etc/di.xml find the path Magento\Framework\App\View\Asset\MaterializationStrategy\Symlink and replace to Magento\Framework\App\View\Asset\MaterializationStrategy\Copy. (It is already set to Magento\Framework\App\View\Asset\MaterializationStrategy\Copy by default)

2) Using Putty to run below commands

    bin/magento setup:static-content:upgrade
    bin/magento setup:static-content:deploy
    bin/magento indexer:reindex

3) Using Putty to run below commands

    php -dmemory_limit=1G bin/magento setup:upgrade
    php -dmemory_limit=1G bin/magento setup:di:compile
    php -dmemory_limit=1G bin/magento setup:static-content:deploy -f
    php bin/magento cache:clean

4) The permission for /pub/ and /var/ folders is set to 0755 as per default.

I'm using Goddy Hosting > C-Panel > Magento 2.3.1 on Windows 10. First picture is from frontend and second picture is from backend.

Answer 1

If you deployment script not working for you, then there is something missing in your .htaccess file.

Download same Magento version on your local system, and replace following .htaccess files

ROOT/.htaccess
ROOT/pub/.htaccess
ROOT/pub/static/.htaccess

Edit: in ROOT/.htaccess and ROOT/pub/.htaccess file add following line on top of the file:

SetEnvIf X-Forwarded-Proto https HTTPS=on

Answer 2

I too got this error many times during fresh installation, hope this answer helps you.

Try below sql commands in your db

UPDATE core_config_data SET value = 0 WHERE path = 'web/seo/use_rewrites';

INSERT INTO core_config_data (config_id, scope, scope_id, path, value) VALUES (null, 'default', 0, 'dev/static/sign', 0);

and proceed below commands from your root directory

php -dmemory_limit=1G bin/magento setup:upgrade
php -dmemory_limit=1G bin/magento setup:di:compile
php -dmemory_limit=1G bin/magento setup:static-content:deploy -f
php bin/magento cache:clean
chmod -R 777 var/ pub/ generated/