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Can't make Fetch API work

See original GitHub issue

As far as I understand, Fetch API is supported but I couldn’t make it working.

On the code like fetch(request)... I got an error ReferenceError: "fetch" is not defined. On the code like window.fetch(request) it fails with TypeError: Cannot find function fetch in object [object Window]

I use 2.36.0 version with htmlunit-driver and RobotFramework. The code for creating htmlunit driver is the following:

https://github.com/Hi-Fi/robotframework-seleniumlibrary-java/blob/fed6f0e95b5cf5a365f8357a9976ec9ed7ff7e1e/src/main/java/com/github/markusbernhardt/seleniumlibrary/keywords/BrowserManagement.java#L782-L785

I expect that it will use default browser that is CHROME and it should have a support for Fetch API.

Issue Analytics

State:
Created 4 years ago
Comments:9 (6 by maintainers)

Top GitHub Comments

2reactions

rbricommented, Mar 11, 2022

since 2.59 there is finally a workaround based on the polyfill support - check out https://htmlunit.sourceforge.io/webclient.html

1reaction

rbicommented, Jun 18, 2021

@mvillafuertem maybe you meant @rbri instead of @rbi ?

But as a coincidence I faced the same issue. I solved it by using a Polyfill that implements the fetch API based on XMLHttpRequest in the software under test.