My website currently has live math using embedded Mathematica CDFs. Since Wolfram has told me that they are dropping support for the browser plugin, I would like to convert all of my live math to SageMathCell. In the first page I'm testing, I've found that evaluating the eigenvalues of a 30x30 matrix does not finish and the cell in which the evaluation runs becomes grayed out while the working indicator continues to spin endlessly.
Is this a limitation of your server or my local machine? Is there some way to keep the cell alive until the evaluation completes? Thanks.