I have the same problem with one site I am building. To try to fix the problem I have put a logo.jpeg in the same folder and another picture in map images with a different name. None of them show up. But in index.html (same folder) I created both pictures show without any problem. I made lot’s of .html and.php webpages but I never had this problem before. It’s just recently.

The pad to the.php file is like this: https://localhost/mapname/index.php. Is this just a local problem?