Fix sporadical timeout issue when adding new samples/remarks #1522
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Description of the issue/feature this PR addresses
This PR addresses sporadical timeout issues when adding new Samples or new Remarks. The problem occured first in FireFox 68 ESR so that either the "Save" button kept disabled or the dataset was not stored.
Further information:
Current behavior before PR
Some browsers dropped silently some Ajax POST requests.
Desired behavior after PR is merged
Ajax POST requests have now a timeout of 10 minutes. If the request failed, an error message is displayed to the user.
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I confirm I have tested this PR thoroughly and coded it according to PEP8
and Plone's Python styleguide standards.