HTML validator doesn’t like this “proxy.php?c=auto&f=”
Line 19, Column 75: cannot generate system identifier for general entity “f”.
An entity reference was found in the document, but there is no reference by that name defined. Often this is caused by misspelling the reference name, unencoded ampersands, or by leaving off the trailing semicolon (;). The most common cause of this error is unencoded ampersands in URLs as described by the WDG in “Ampersands in URLs”.
Can I replac the “&” and where/ which file ?
I took a look on proxy.php, but not sure if it’s the right place.