CODEWITHSUNDEEP
javascripthtml
yohannist
yohannist

Reputation: 4204

What does ?_0_ mean when placed at the end of source path of a js file in <script> tag

What does ?0 mean when placed at the end of source path of a js file in tag? For example, in the following script tag, you will see the ?0 appended to the end. What does it signify?

<script src="/xxx/xxx/xxx/header.js?_0_"></script>

Upvotes: 2

Views: 55

Answers (2)

Vincent Cheung
Vincent Cheung

Reputation: 131

The ?_0_ might just be used as a cachebuster? Here is a post that talks about cachebusting (look at the query strings section): https://css-tricks.com/strategies-for-cache-busting-css/

Upvotes: 3

Poul Kruijt
Poul Kruijt

Reputation: 71901

Just basic versioning of the js file. It's a mechanism to prevent browser cache. If they build another header.js they will add ?_1_ behind it. This way the browser loads the new version.

Upvotes: 6

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