Code editor cannot process and save a style with dynamic background property

The Wappler code editor changes the following line on saving:

<section class="establishmentpage-header" style="position: relative; background-position: center" dmx-style:background-image="url("'establishment/images/' + serverconnect_establishment.data.query_images[0].path");">

to

<section class="establishmentpage-header" style="position: relative; background-position: center" dmx-style:background-image="url(" 'establishment="" images="" '="" +="" serverconnect_establishment.data.query_images[0].path");"="">

I cannot use a dynamic value for background image. Am I doing it wrong or is Wappler trying to be MS Word?