FileMaker Pro 19.1.3 FMP URL Changes
[N.B. This article only applies to fmESignature Link v1.36 or earlier]
The FileMaker Pro 19.1.3 software update includes a new option parameter for fmp URLs which controls how a currently running script is handled (this matches up with the changes to the FileMaker.PerformScriptWithOption() JavaScript function introduced in FileMaker Pro 19.1.2).
There are 6 possible values for the option parameter - see the following Claris FileMaker Pro 19 Help article for full details:
https://help.claris.com/en/pro-help/content/options-for-starting-scripts.html
When we authenticate with DocuSign we are using a FileMaker Web Viewer to load a page which in turn calls a fmp url and passes in the JWT token as a script parameter. You might encounter issues with the timing of the FileMaker script - processSignatureRequest - called by the fmp url when using FileMaker Pro 19.1.3 or later. To address this issue you can add the following option parameter string:
&option=5
which forces the processSignatureRequest script to run which is required before any other scripts are performed. You can add this parameter to the SignatureWebViewerHTML field which stores the html used for the Web Viewer during the authentication with DocuSign. When in Layout Mode change to the layout named 'Web Viewer Assets' and set the SignatureWebViewerHTML field to be accessible in browse mode. Then add the string:
&option=5
in between 'processSignatureRequest' and '¶m='. Here's a screenshot showing this new parameter in red:
