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cdf format - CDF plugin no longer launches in Chrome


I exported a web-embeddable CDF, and created an html page with the automatically generated code. Both are in a local folder. When I open the HTML page in a Chrome browser, i get the PNG image telling me to download the Plugin. But I already have it, and indeed downloading again does not fix the problem. I then went to several CDF files that I have uploaded to server, and that worked in the past, and none of them work. However, all work in Safari. What has changed?


I suspect this may have to do with Chrome blocking certain plugins, but I do not see CDF in the list at chrome://plugins


On my local machine I am running Mma 10.0.1, under Mac OS 10.9.5. Chrome is Version 39.0.2171.71 (64-bit).




Answer



I had contacted tech support at Wolfram about one of my demonstrations, and got a reply from Ed Pegg (one of the editors at the Wolfram Demonstration site) which included this:


"Mathematica 10 turned out to be incompatible with the server our Demonstration site runs on, so we're needing to do a major upgrade. But it's taking longer than expected. The landscape for plugins is changing -- Chrome soon won't accept 32-bit plugins. The process of making a free Version 10 player is proving trickier than expected."


I guess from this that the cdf player must be a 32-bit plugin, and is now rendered incompatible with Chrome. As Szabolcs points out, the cdf player continues to work in other browsers like Firefox and Safari.


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