jquery - How can I show a spinner while the server generates a PDF file for the user? -

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i'm using spring mvc present user form has series of options. when submit form, options used generate pdf file. in cases, generation of pdf file takes while — 30 seconds or more.

when pdf generated, comes down application/pdf user can save.

i'd show animation while pdf being generated. @ moment, indication server working waiting ... shown in browser.


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