Comment by j on "What are the disadvantages of using a lot of iframes in a single website?"

CommentWhat are the disadvantages of using a lot of iframes in a single website?

stuff ;)

Nov 21, 2018

in short

context issues

scroll issues (jump to in the url with # are not working within the frame unless bridged with js)
focus issues (you click inside of the iframe with and the main window can loose fokus)
styling issues
needing to use a message system to communicate between the frames (you need extra event listeners between the iframes and the main windows to send certain events)
- http-security headers who block iframes in browsers based on the source -> developer.mozilla.org/en-US/docs/Web/HTTP/Headers…
- state issues you now have different states within 1 page changing 1 frames does not necessarily impact the others.

just from the top of my head.

these can be problems or advantages based on what you want to achieve.

Mahesh Mdr

Nov 21, 2018

Thanks for sharing thoughts here,, J

If you have any thoughts based on pagePerformance (requests,page load timing,slowness) ?

Mahesh Mdr iframes are isolated requests, I would have to check the memory model of the browsers but i think every frame is somewhat equal to its own tab but I really would have to read the technical specifications

I think it depends on what you're loading in the iframes and what their page requests are like so it's a classic additive vector for all of it IFLT (IFrameLoadingTime)

IFLT1 + IFLT2 + IFLT3

but ofc it could increase some loads in theory because there are limits to concurrent browser requests .... again I would have to look up how frames are handled from a process / thread perspective.

sorry :)

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