cast sender js error Failed to load resource net ERR FAILED in Chrome

Question

I recently started receiving the following console errors  without any code changes taking place   I did not install any extensions recently   Failed to load resource  net  ERR FAILED chrome-extension   enhhojjnijigcajfphajepfemndkmdlo cast sender js Failed to load resource  net  ERR FAILED chrome-extension   hfaagokkkhdbgiakmmlclaapfelnkoah cast sender js Failed to load resource  net  ERR FAILED chrome-extension   enhhojjnijigcajfphajepfemndkmdlo cast sender js Failed to load resource  net  ERR FAILED chrome-extension   fmfcbgogabcbclcofgocippekhfcmgfj cast sender js Failed to load resource  net  ERR FAILED   I have several YouTube player embeds on the page that are triggering this error  but they are simple    lt iframe width  100   height  100   src  http   www youtube com embed OUR YOUTUBE ID showinfo 0 amp amp wmode transparent  frameborder  0  allowfullscreen    gt  lt  iframe gt    Has anybody else experienced this

User · Accepted Answer

Apparently YouTube constantly polls for Google Cast scripts even if the extension isn't installed.

From one commenter:

... it appears that Chrome attempts to get cast_sender.js on pages that have YouTube content. I'm guessing when Chrome sees media that it can stream it attempts to access the Chromecast extension. When the extension isn't present, the error is thrown.

Read more

The only solution I've come across is to install the Google Cast extension, whether you need it or not. You may then hide the toolbar button.

For more information and updates, see this SO question. Here's the official issue.

User · Answer

In addition to what was already said - in order to avoid this error from interfering  stopping  other Javascript code on your page  you could try forcing the YouTube iframe to load last - after all other Javascript code is loaded

User · Answer

The error is try to fix a Youtube error   The solution to avoid your Javascript-Console-Error complex is to accept that Youtube  and also other webpages  can have Javascript errors that you can t fix   That is all

User · Answer

A simple fix for this is to install the Google Cast extension  If you don t have a Chromecast  or don t want to use the extension  no problem  just don t use the extension

User · Answer

I m going to add to the answer given before   It s not a bug in your code or the browser s code  It s the JavaScript code inside the YouTube iframe polls for the extensions it could interoperate with in case they were installed  likely to determine if the extension is installed    Look at the source of www-embed-player js  loaded from s ytimg com  it s YouTube static files CDN   You ll find the following   function Wj a  return chrome-extension     a   cast sender js

User · Answer

To stop seeing those cast sender js errors  edit the youtube link in the iframe src and change embed to v

[javascript] cast_sender.js error: Failed to load resource: net::ERR_FAILED in Chrome

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