Cannot render iframe content

[markb-trustifi]

version: 1.0.0-alpha.12
browser: chrome 69
os: Mac

The process is stuck when I add to the rendered element one of these iframes:
<iframe src="images/logo-icon.svg"></iframe>
<iframe src="data:text/html,<p>Some HTML</p>"></iframe>

As far as I see it is stuck at function ResourceLoader.ready, line 187
Some of the promises remains pending forever and line return Promise.all(values) never reached.
If I change the original code to this one:

var values = keys.map(function (str) {
    return Promise.race([_this5.cache[str].catch(function (e) {
        if (process.env.NODE_ENV !== 'production') {
            _this5.logger.log('Unable to load image', e);
        }
        return null;
    }), new Promise(function(resolve, reject) {
        setTimeout(resolve, 5000, null);
    })]);
});

the file is rendered but the iframe area remains blank.

[orl99]

I have the same problem

[tangdw]

+1

[rzontar]

Had the same problem in Firefox 65 on Windows. 1 promise never resolved or rejected.

Our solution was to add an data-html2canvas-ignore="true" attribute to all iframes before calling html2canvas.