I've got two pages that use the same js-file to call certain PHP-file and get data from there in JSON format. Although the data that gets in the PHP-file AND data that gets out is exactly the same, Ajax on the second page returns 'parsererror' SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data.
$.ajax({
type: 'POST',
dataType: "json",
data: {objtyp: this.objtyp, objid: this.objid},
url: '/admin/getfieldsadd.php',
success: function(data) {
//not going to happen
},
error: function (xhr, status, text) {
switch (status) {
case 404:
alert('File not found');
break;
case 500:
alert('Server error');
break;
case 0:
alert('Request aborted');
break;
default:
alert('Unknown error: ' + status + " " + text);
}
}
So have anybody encountered the same problem?
This sounds reminiscent of the dreaded BOM . Excerpt from that link:
At the beginning of a page that uses a Unicode character encoding you may find some bytes that represent the Unicode code point U+FEFF BYTE ORDER MARK (abbreviated as BOM).
The BOM, when correctly used, is invisible.
Perhaps check that the file's encoding is set to UTF8 Without BOM .
Maybe a mime type error.
Try to add the beforeSend property like this in your AJAX call :
$.ajax({
type: 'POST',
dataType: "json",
data: {objtyp: this.objtyp, objid: this.objid},
url: '/admin/getfieldsadd.php',
beforeSend: function(x) {
if(x && x.overrideMimeType) {
x.overrideMimeType("application/json");
}
},
...
}
It appears the trouble was in jQuery version. Now that it's updated all seems to work fine.
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