CSP Issue attempting to access an iframe from a different origin: "Blocked a frame with origin from accessing a cross-origin frame"

Grafana k6 k6-browser
5

Hi @inancgumus

Here’s an example to reproduce the problem:
I’ve setup a tmp instance of a Braintree credit card form here:
https://k6csp.guruslabs.com/btree/

Here’s the sample k6 browser test I created

I tried executing this with:

K6_BROWSER_HEADLESS=false k6 run k6b-iframe.js

In desperation I also tried it with:
K6_BROWSER_HEADLESS=false K6_BROWSER_ARGS='disable-web-security,user-data-dir=datadir' k6 run k6b-iframe-sample.js

In all scenarios I get the following error:

ERRO[0005] Uncaught (in promise) GoError: evaluating JS: DOMException: Blocked a frame with origin "https://k6csp.guruslabs.com" from accessing a cross-origin frame.
    at __xk6_browser_evaluation_script__:3:89
	at github.com/grafana/xk6-browser/api.Page.Evaluate-fm (native)
	at file:///<<snip>>/k6b-iframe-sample.js:42:24(39)  executor=shared-iterations scenario=browser

Let me know if you need anything else

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