fix: prevent Neuroglancer from stealing focus when it is embedded in an iframe
fix: prevent Neuroglancer from stealing focus when it is embedded in an iframe

This allows Neuroglancer to be embedded as an iframe in a Jupyter notebook.

seung-lab/neuroglancer,seung-lab/neuroglancer,seung-lab/neuroglancer,seung-lab/neuroglancer,seung-lab/neuroglancer,seung-lab/neuroglancer,seung-lab/neuroglancer