Updating ol.layer.Tile parameters in OpenLayers 3.9.0

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I have a TileWMS:

var mapWMSTile = new ol.source.TileWMS( { url: '.....', params: {'LAYERS': 'l1,l2', VERSION: '1.3.0', 'TILED': true}, serverType: 'mapserver' }); var fieldTile = new ol.layer.Tile( { source: mapWMSTile, name: 'fieldTile' }); Now I want to add a layers to my WMS parameters (e.g. add l3 in 'LAYERS'). Is this possible?

I have tried the below codes without success:

First try:

mapWMSTile.updateParams( { params: {'LAYERS': 'l3', VERSION: '1.3.0', 'TILED': true} }); Second try:

fieldTile.getSource().updateParams({'LAYERS': 'l3', VERSION: '1.3.0', 'TILED': true});

I am using OpenLayers 3.9.0.



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