setTransactionMode not work

Suite and Optimus Suite 5
#1

I use the follow code to send some additional data,but it seems not work,

myDp = new dataProcessor("<?php echo $dataProcessor_url;?>");
myDp.setTransactionMode({
    headers:{
        "Accept-Language": "fr-FR"
    },
    payload:{
        "x_id":"mmmml",
        "test_data":"woshitiancai"
    },
    mode:"POST"
}, true);
myDp.setUpdateMode("cell");
myDp.enableDataNames(true);
myDp.init(myGrid);

when I check the header in with chrome develop tool,I can not see any header about “fr-FR” and not see my custom data about ‘x_id’ and ‘test_data’. I have tried many times but could not find the solution.

#2

PS:I did not used connector and I used dataStore to be the source of data.

#3

Be sure that you are using the latest version of DHTMLX, this API is relative new. Old versions of dataprocessor will not recognize headers and payload parameters of setTransactionMode command.