Photoshop opens dialog box when trying to fill a layer with transparent pixels locked

Question

This script should set the layer to lock transparent pixels, and then fill the layer with a color. It does that, except when it gets to the fill stage, it opens the fill dialog box, and you have to hit okay.
If you omit the transparent pixel line, it runs as expected, no dialog box.
Is there a way to suppress the box? Or am I doing something wrong that's causing the box to open?
#target photoshop
app.bringToFront();
doc = app.activeDocument;
doc.artLayers[0].isBackgroundLayer = false;
doc.artLayers[0].transparentPixelsLocked = true;
app.activeDocument.selection.fill(app.foregroundColor);

Answer 1

Not sure why that happens.
But I would recommend foregoing the locking and using the AM code for a Fill that honours the transparency.
#target photoshop 
app.bringToFront(); 
doc = app.activeDocument; 
doc.artLayers[0].isBackgroundLayer = false; 
doc.activeLayer = doc.artLayers[0];
// =======================================================
var idFl = charIDToTypeID( "Fl  " );
    var desc18 = new ActionDescriptor();
    var idUsng = charIDToTypeID( "Usng" );
    var idFlCn = charIDToTypeID( "FlCn" );
    var idFrgC = charIDToTypeID( "FrgC" );
    desc18.putEnumerated( idUsng, idFlCn, idFrgC );
    var idOpct = charIDToTypeID( "Opct" );
    var idPrc = charIDToTypeID( "#Prc" );
    desc18.putUnitDouble( idOpct, idPrc, 100.000000 );
    var idMd = charIDToTypeID( "Md  " );
    var idBlnM = charIDToTypeID( "BlnM" );
    var idNrml = charIDToTypeID( "Nrml" );
    desc18.putEnumerated( idMd, idBlnM, idNrml );
    var idPrsT = charIDToTypeID( "PrsT" );
    desc18.putBoolean( idPrsT, true );
executeAction( idFl, desc18, DialogModes.NO );