Passing parameters from connected app

Question

I have this visualforce page below and I'm using the canvasApp, along with it I'm also passing the parameters but some reason I'm unable to see those parameters in the third party app what is it that I need to do in order to pass the parameters to canvasApp?

I'm aware that parameters are embedded in the context and when I debug the size of the parameters is showing 0

<apex:page >

    <apex:canvasApp developerName="CanvasMvcHelloWorld" 
         height="1000px" width="800px" 
        parameters="{vst_cli: '1293'}"/>

</apex:page>

Here is the screen shot:

Answer 1

The issue here is how you are testing the canvas App.Canvas App Previewer simply sends signed request and user context and not parameters from your actual visualforce page

Since the parameters are passed only when visualforce is rendered .You should test this via Visualforce page to see the parameters and not use canvas App previewer .

Go to your page URL salesforce_domain/apex/vfname