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HTML Introduction to HTML and CSS (2016) HTML: The Structural Foundation of Web Pages and Applications Image Tags

Posted by jeanludovicblanchon
jeanludovicblanchon
318 Points

Does http://placeimg.com really allows us to make a different image appear each time F5 is pressed ? Still the same pic'

Even with different scales and names (http://placeimg.com/400/400/nature or /people or /tech or whatever in the end of the link), it only makes the same image appear when I reload the page. Does anyone knows why ? Or maybe it is simply because this has changed since the video was made

4 Answers

Steven Parker
Steven Parker
229,786 Points
Steven Parker
Steven Parker
229,786 Points

Most likely, your browser is trying to be efficient by caching the image. Try doing a no-cache reload if your browser has that function (most do). On Chrome, it's Ctrl+f5.

You can also use a bit of JavaScript to change the URL each time to prevent the cached copy from being used:

document.querySelector("img").src += "?nocache=" + Math.random();

Note that this particular script only targets the first image on the page.

Nathaniel Ohiare
Nathaniel Ohiare
109 Points

Thanks, the no-cache reload worked.

Steven Parker
Steven Parker
229,786 Points
Steven Parker
Steven Parker
229,786 Points

It would go in a JavaScript file, if your project has one, and if not between "script" tags as the last part of the HTML body:

   <script>  code would go here  </script>
</body>
jeanludovicblanchon
jeanludovicblanchon
318 Points
jeanludovicblanchon
jeanludovicblanchon
318 Points

Alright, thank you for the answer, that is clear ^^

Amy Chatas
seal-mask
.a{fill-rule:evenodd;}techdegree
Amy Chatas
Front End Web Development Techdegree Student 158 Points
Amy Chatas
.a{fill-rule:evenodd;}techdegree
Amy Chatas
Front End Web Development Techdegree Student 158 Points

Super helpful - the video doesn't give that detail for making the images change. When I add as you indicate - It works!

<script> document.querySelector("img").src += "?nocache=" + Math.random(); </script> </body>

Yousef El-Chafei
Yousef El-Chafei
758 Points
Yousef El-Chafei
Yousef El-Chafei
758 Points

An easier way I found was to do the command Ctrl+f5 this command forces a no-cache.

Hope this helps