If you build, maintain or tune web sites you’ll know about the browser cache and how to control caching using HTTP response headers. We’ve talked about caching in several previous posts.
However, you may not be aware that IE uses two caches for holding images. First, there is the regular browser cache that keeps a copy […]
The result column in HttpWatch may sometimes display the value (Aborted) instead of an HTTP status code:
(Aborted) is one of three pseudo status codes that are used in HttpWatch to display information about HTTP requests that did not receive a status code from the server:
(Aborted)
(Cache)
ERROR_*
The last two values are fairly straight forward. The (Cache) result is displayed when content […]
Some customers contacted us recently to ask why they were seeing http://:/ recorded in HttpWatch. This URL produces an ‘Error 0×57′ in IE 6 and ERROR_INTERNET_INVALID_URL on IE 7.
The sites causing these errors had one thing in common. They were either using the jQuery or YUI javascript libraries. It was not immediately obvious where this URL […]
Typing Ctrl+F5 in Internet Explorer is a handy way to force the reload of a page and all its component parts (e.g. images, css , javascript etc). It has the same effect as visiting a page with an empty browser cache.
If you use HttpWatch with Ctrl+F5 in IE 6, you can see that every request […]
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