cy.task not working with ArrayBuffer

[theJ3H]

Current behavior

When using a task with a ArrayBuffer as argument, I get the error message cy.task() must only be invoked from the spec file or support file.

Using an array or a string as an argument works fine.

This is a problem when using cy.intercept and trying to send the intercept.body.response as an argument for a task, like validating the content of a intercepted pdf file.

This worked fine in Cypress 12.14.0

Desired behavior

Cypress should also allow ArrayBuffer to be passed as an argument. Alternatively there should be an explaination+documentation why ArrayBuffer is no longer supported as an argument, as the current error message is misleading.

Test code to reproduce

spec.cy.js

describe("Test for bug ", () => {
    it(`doesnt work`, () => {
        			
		const buffer = new ArrayBuffer(10);				
		cy.task("log", buffer)
		
    })
		
    it(`works`, () => {
        			
		const array = new Array(10);
		cy.task("log", array)
		
    })
	
});

cypress.config.js

const { defineConfig } = require('cypress')

module.exports = defineConfig({
  // setupNodeEvents can be defined in either
  // the e2e or component configuration
  e2e: {
    setupNodeEvents(on, config) {
      on('task', {
        log(message) {
          console.log(message)

          return null
        },
      })
    },
  },
})

Cypress Version

12.16.0

Node version

v18.12.1

Operating System

Win11

Debug Logs

No response

Other

Worked fine with older versions, the fix in 12.16.0 didn't help.

[chrisbreiding]

Thanks for the error report. I verified this is a bug and a fix should be out for it in the next release.

[cypress-bot]

Released in 12.17.0.

This comment thread has been locked. If you are still experiencing this issue after upgrading to
Cypress v12.17.0, please open a new issue.