问题
With reference to this issue: jQuery/JavaScript to replace broken images
I still get exceptions like this in chrome console, even when when the images are being correctly repalced using the suggestions from the linked solution above:
GET http://10.10.0.3/OC/media/profile-pics/2348022002298.jpg 404 (Not Found)
I'm an building up a large address book where images are saved by mobile number. there would potentially be 1000's of 404 errors.
Would that be a performance issues - 1000's of failed image download attempts?
IS there a more efficient solution to that suggested in the link?
My best alternative so far seems to build this up server-side and do a file replace ahead of time for files i cant find.
Suggestions please, thanks.
回答1:
Because the http requests still fail.
After they fail you use the replacement, but it's not like preventing an exception to throw up.
To further explain, using @RGraham's comment below:
the console shows errors of many types. Among which
- Javascript exception, unless handled.
- Network requests which return with error status(4xx,5xx).
The latter is your case. After this happens, you have a solution, but they do go and fail.
来源：https://stackoverflow.com/questions/30637260/why-does-chrome-still-log-404-not-found-errors-for-missing-images-even-after-a