The image file on the server exists, but some images on the browser are shown as 404 errors and 404 errors.
Background: some images on the webpage are not displayed. Error 404
Cause analysis:
Why are some images and some images unavailable? After carefully comparing the image file names, you can find that the names of images that cannot be displayed contain spaces or plus signs.
Zookeeper was originally like this.
1. In the iis7 environment under window2008, the url contains a space or a plus sign, and the url cannot be accessed normally.
2. The request Filtering module is configured to reject requests that contain double escape sequences. The browser returns an HTTP Error 404.11-Not Found.
Solution:
Solution 1: Modify the file name without the plus sign or space
Solution 2: Modify the web. config file, find the <system. webServer> node, and add <requestFiltering allowDoubleEscaping = "true">