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Asked: 2026-06-05T07:21:21+00:00

I am using XMLHttpRequest to call a REST service. When testing is under Mozilla

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I am using XMLHttpRequest to call a REST service.

When testing is under Mozilla and Chrome everything works just fine.

Although, when I enabled the Ripple under Chrome it stopped working. After some debugging I found out that in the switch/case statement, where I do something like …

switch (this.readyState) {
 case XMLHttpRequest.DONE: ... some code here ... break;
}

… the “case” does not get fired.

Closer examination determined that all the values XMLHttpRequest.* are undefined so that is the reason my code stopped working.

Q: Why XMLHttpRequest readyState values, otherwise well defined, become undefined under Ripple?

Are there any solutions for that issue, other than using plain numbers like 1, 2, 3, 4 or defining the values myself.

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1 Answer

  1. Editorial Team

    After installing the Ripple Emulator 0.9.5 the testing script passes the test – the XMLHttpRequest values for LOADING, DONE, etc. are there.

    Looks like you have to download the Ripple from https://developer.blackberry.com/html5/downloads/ripple and then manually install the Chrome extension instead of just updating the extension from the menu.

    NOTE: At the time this question was asked the version above was not available so the problem existed.

    NOTE2: Here is a link https://developer.blackberry.com/html5/documentation/ww_getting_started/Use_the_Ripple_emulator_Chrome_extension_2007542_11.html with instructions how to install the extension to the Chrome, i.e. drag-and-drop the ripple_ui.crx file.

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