Make sure that the error message encoded is in utf8 #1906
Merged
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While helping a user in Qiita I found that if a sample information file contained non-utf8 characters, it will break the communication between the ipython workers and the main server. This PR makes sure that the error message is a utf8 valid string, by replacing the non-utf8 characters with the official U+FFFD REPLACEMENT CHARACTER, as seen below: