[javascript] Google Chromecast sender error if Chromecast extension is not installed or using incognito

I'm having an error running Chromecast sender in Chrome Incognito or if Chromecast extension is not installed:

Failed to load resource: net::ERR_ADDRESS_UNREACHABLE chrome-extension://boadgeojelhgndaghljhdicfkmllpafd/cast_sender.js
Failed to load resource: net::ERR_ADDRESS_UNREACHABLE chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm/cast_sender.js
Failed to load resource: net::ERR_ADDRESS_UNREACHABLE chrome-extension://hfaagokkkhdbgiakmmlclaapfelnkoah/cast_sender.js
Failed to load resource: net::ERR_ADDRESS_UNREACHABLE chrome-extension://fmfcbgogabcbclcofgocippekhfcmgfj/cast_sender.js
Failed to load resource: net::ERR_ADDRESS_UNREACHABLE chrome-extension://enhhojjnijigcajfphajepfemndkmdlo/cast_sender.js
No cast extension found

Google cast sender is trying to send AJAX requests for local "cast_sender.js". Should this happen or is there a better way to check if Chromecast sender extension exists (not by requesting AJAX request)?

I believe these AJAX requests are a way of asking if Chromecast extension exists. Is there a better way to check if Chromecast extension exists?

By default Chrome extensions do not run in Incognito mode. You have to explicitly enable the extension to run in Incognito.

How about filtering these errors ?

With the regex filter bellow, we can dismiss cast_sender.js errors :

^((?!cast_sender).)*$

Do not forget to check Regex box.

Another quick solution is to "Hide network messages".

i know it is not the best solution, but the only one supposed solution that i have read for all the web is to install chrome cast extension, so, i've decide, not to put the iframe into the website, i just insert the thumnail of my video from youtube like in this post explain.

and here we have two options:
1) Target the video to the channel and play it there
2) Call the video via ajax, like explain here (i've decided for this one) in a colorbox or any another plugin.

and like this, i prevent the google cast sender error make my site slow

If you want to temporarily get rid of these console errors (like I did) you can install the extension here: https://chrome.google.com/webstore/detail/google-cast/boadgeojelhgndaghljhdicfkmllpafd/reviews?hl=en

I left a review asking for a fix. You can also do a bug report via the extension (after you install it) here. Instructions for doing so are here: https://support.google.com/chromecast/answer/3187017?hl=en

I hope Google gets on this. I need my console to show my errors, etc. Not theirs.