Debug in Firefox problem

Im debuging an App in Chrome and Firefox

In Chrome works ok but in firefox after do the login the app freeze in the second page.

Pages process

1. Login from web service
2. load data from web service (Freeze in Firefox) but the data is loaded.
3 show data from web service

Console Log Firefox

Use of Mutation Events is deprecated. Use MutationObserver instead. target-script-min.js:429:9

Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help http://xhr.spec.whatwg.org/ target-script-min.js:429:9



Console Log Chrome


Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/. target-script-min.js:429

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