update image_viewer server.js (more to come)
update image_viewer server.js (more to come)

etpinard/plotly.js,asolagmbh/plotly.js,plotly/plotly.js,plotly/plotly.js,iongroup/plotly.js,iongroup/plotly.js,etpinard/plotly.js,etpinard/plotly.js,plotly/plotly.js,asolagmbh/plotly.js,aburato/plotly.js,asolagmbh/plotly.js,iongroup/plotly.js,aburato/plotly.js,plotly/plotly.js