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Saver Drop-In doesn't work for Chrome Extensions

Even when you add your extension id to the Drop-Ins Domain list, triggering the Saver Drop-In from a Chrome extension currently results in an "Unable to communicate with the parent window" error because for all popups triggered from a Chrome Extension, the window.opener variable in the popup will be NULL.

Does anyone have an elegant solution for resolving this? So far the only potential fix I can see is generally a no-no with Chrome Extensions:

Open a new page (perhaps in an IFrame) from a domain that is on your "Drop-ins domains" list.
Include a Content Script in that page that injects (via "<script>" tags) the Dropbox saver code into the DOM of the page (as opposed to just running in the sandboxed extension DOM).

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Comments

Greg-DB

Unfortunately we don't have any official guidance or support for using the Drop-ins in a Chrome extension right now, but I'll be sure to pass this along as a request.

Andrew H.21

Thanks for the update Greg, I don't have a silver bullet solution but I would suggest that, if the developers were up to the challenge of making Drop-Ins work for Chrome Extensions, they take a look at Message Passing from Webpages: https://developer.chrome.com/extensions/messaging#external-webpage

Greg-DB

Thanks for the tip Andrew!