pb-facsimile component not working in Chrome, MacOS

[mike-kelly]

This component doesn't display images in Chrome on MacOS. Not tested on Windows or Linux machines.
The browser also hangs and often requires the tab to be closed.

This appears to be a rendering issue: I was able to fix it by adding a parameter to the initialisation of OpenSeadragon in pb-component-bundle.js:

drawer:'canvas'

[duncdrum]

see #241

[duncdrum]

@mike-kelly do you still see this behaviour with the latest release or is this good to close?

[tuurma]

closing, please reopen with more detailed description if the issue persists