[Fiber] use srcset to trigger load even on img mount #30351
Conversation
|
The latest updates on your projects. Learn more about Vercel for Git ↗︎
|
facebook-github-bot
added
the
React Core Team
| return; | ||
| case 'img': { | ||
| if ((newProps: any).src) { | ||
| ((domElement: any): HTMLImageElement).src = (newProps: any).src; |
There was a problem hiding this comment.
if srcset is present and this branch is hit, does load trigger? I might have assumed that it would ignore src completely when srcset is present
There was a problem hiding this comment.
So firefox only triggers load when you set src even if there is a srcset. So I prefer src here to trigger the load in FF. Chrome triggers it when either is set so setting src if it exists is good enough but it will fall back if only srcset is set. Safari never triggers a new load so the existing solution doesn't work and this change won't really do anything about that
There was a problem hiding this comment.
mind adding this as a comment?
|
Comparing: 0117239...0971bb4 Critical size changesIncludes critical production bundles, as well as any change greater than 2%:
Significant size changesIncludes any change greater than 0.2%: Expand to show
|
| return; | ||
| case 'img': { | ||
| if ((newProps: any).src) { | ||
| ((domElement: any): HTMLImageElement).src = (newProps: any).src; |
There was a problem hiding this comment.
mind adding this as a comment?
In facebook#23316 we fixed a bug where onload events were missed if they happened too early. This update adds support for srcset to retrigger the load event. Firefox unfortunately does not trigger a load even when you assign srcset so this won't work in every browser when you use srcset without src however it does close a gap in chrome at least
In #23316 we fixed a bug where onload events were missed if they happened too early. This update adds support for srcset to retrigger the load event. Firefox unfortunately does not trigger a load even when you assign srcset so this won't work in every browser when you use srcset without src however it does close a gap in chrome at least DiffTrain build for [7f217d1](7f217d1)
4 participants
In #23316 we fixed a bug where onload events were missed if they happened too early. This update adds support for srcset to retrigger the load event. Firefox unfortunately does not trigger a load even when you assign srcset so this won't work in every browser when you use srcset without src however it does close a gap in chrome at least