Access to files produced by view() in Jupyter

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How would one access files produced by the view() function, when running Sagemath in Jupyter[hub] notebooks? The files are ~/.sage/temp/<hostname>/<pid>/sage_viewerXYZ/sage.{tex,pdf}. External viewer can't be invoked when using notebook server (Jupyterhub) and I would like to do something like show(html("PDF)).