Chrome Origin Trials

BrowZer uses JSPI, or WebAssembly JSPI (JavaScript Promise Integration). This is a new API to bridge JavaScript Promises with WebAssembly workflows and is vital to BrowZer's workflow.

::: note JSPI is still in review and not fully adopted by Chromium-based browsers

JSPI can be enabled in multiple ways, including:

• by the end-user of the browser, by enabling the flag (down in chrome://flags)
• via what is known as an "Origin Trial 3"

Some browsers (like Edge) have recently stopped making the JSPI flag available in the edge://flags UI for users to update. The only way to enable JSPI for these browsers is via a Chrome Origin Trial.

It also is a better overall experience for end users. These users never need to manually enable JSPI or even know JSPI exists. Origin Trials will transparently enable the JSPI flag for the end-user of your BrowZer-protected web app.

Sign Up

To sign up for the Origin Trial you need to:

• visit this page and register for the JavaScript Promise Integration Trial. It's free.
• Sign in to Google using the button in the upper right corner
• fill in the fields
  • Web Origin: this should be your "wildcard url". If you obtained a wildcard cert for *.mybrowzer.example.com, you would enter mybrowzer.example.com in this field
  • Check the "I need a token to match all subdomains of the origin"
  • Fill out the expected usage
  • Check all the checkboxes for the disclosures and acknowledgements after understanding them
  • Click Register

After filling out the fields you'll receive a token. Save/copy the token. The token will be needed when you configure your BrowZer instance.