javascript - Chrome - "disable cache" - Stack Overflow

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I am using Chrome Dev Tools to debug a web app I'm making. I'm curious about this "Disable cache" button in Chrome Dev Tools:

Could someone please tell me what this does?

I've noticed some problems using Offline.js and discovered if I check "Disable cache" here in Dev Tools it works okay.

But what exactly is that doing? I am using Cache Manifest in my app so it works offline, but if clicking "Disable Cache" in Chrome Dev Tools is actually just disguising a bigger problem that's not useful to me.

Essentially what I think is happening:

• The image I am loading (see Offline.js - checking while online?) which Offline.js checks for to determine if the user if online or offline, that image is being cached
• Hence after the first load, it always appears online
• If I disable cache in Chrome Dev Tools, it works correctly because it's loading a fresh copy of the image each time.

Any words of wisdom are wele.

I am using Chrome Dev Tools to debug a web app I'm making. I'm curious about this "Disable cache" button in Chrome Dev Tools:

Could someone please tell me what this does?

I've noticed some problems using Offline.js and discovered if I check "Disable cache" here in Dev Tools it works okay.

But what exactly is that doing? I am using Cache Manifest in my app so it works offline, but if clicking "Disable Cache" in Chrome Dev Tools is actually just disguising a bigger problem that's not useful to me.

Essentially what I think is happening:

• The image I am loading (see Offline.js - checking while online?) which Offline.js checks for to determine if the user if online or offline, that image is being cached
• Hence after the first load, it always appears online
• If I disable cache in Chrome Dev Tools, it works correctly because it's loading a fresh copy of the image each time.

Any words of wisdom are wele.

• javascript
• jquery
• google-chrome
• caching

Share Improve this question Follow edited May 23, 2017 at 12:25 CommunityBot 111 silver badge asked Apr 28, 2015 at 8:19 b85411b85411 10.1k1515 gold badges7171 silver badges126126 bronze badges 4

• The disable cache checkbox does exactly what it says - when you refresh the page with it checked it will request all supplementary files from the server again, instead of reading the previous version of them from the cache. – Rory McCrossan Commented Apr 28, 2015 at 8:21
• 1 Just to add Disable cache is only active while devtools is open. – Satpal Commented Apr 28, 2015 at 8:22
• Here's my problem though - that is okay if Dev Tools is open. But for a regular person using my web app, they can't temporarily disable cache so this image will be able to be reloaded. I need to try and get this to happen automatically in the background. Do you understand what I mean? – b85411 Commented Apr 28, 2015 at 8:24
• hi @b85411 did u get a proper answer to you wuestion , i am facing the same situation when i run my code and i dont want the cache to tell the client to disable their cahe eatch time they load my site!! :( – Dpk_Gopi Commented Nov 8, 2017 at 10:24

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1 Answer 1

Sorted by: Reset to default 6

The disable cache checkbox disable cache, it means every time you connect a server, you will download again the WHOLE website, even already downloaded images.

This may be used when you debug an application that have cache problem (you have cached informations & parsing them but the real data has been changed)

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