I have successfully injected an iframe( its source is https://google.com) to an HTML page dom using vanilla js. But, there are a number of errors arising from injecting the iframe to the DOM.
The most common error is
crbug/1173575, non-JS module files deprecated.
(anonymous) @ VM18962:7288
m=cdos,dpf,hsm,jsa,d,csi:3553 POST https://play.google.com/log?format=json&hasfast=true&authuser=0 400
But despite the error, if I am fast, I'm able to search for something on the google page being accessed by my iframe. however, less than a second later, right before it shows this error: crbug/1173575, non-JS module files deprecated., the iframe RELOADS and goes back to the google homepage.
How do I stop the iframe from reloading or going to the previous page, despite the errors and warning?
Google does not permit https://google.com to be loaded through an iframe. That's the ultimate reason for that error you're witnessing.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Frame-Options
https://support.google.com/programmable-search/answer/4542055