Question

Is there a way to make sure that a certain background image recently updated does appear in its last version on everybody’s browser (rather than the old version stored in cache)?

It has to be a solution not involving touching the line of code calling the CSS (I could put a question mark and a version number after the css file name, like : <link href="styles.css?v=2" rel="stylesheet" type="text/css"/>, but in this case I don’t have access to this part of the code)

Answer 1

You can use the following approach:

.button {
    background: url(../Images/button.png?v=1234);
}