How can I make the browser read the new file and not the cached (and deleted) one?

Hi,

I am displaying a pdf in the web browser using the response helper:

public function view_pdf(Request $request)
{
    $full_path = Storage::disk('disk_1')->path('some_pdf.pdf');
    return response()->file($full_path);
}

But if I replace the pdf file in that folder with the same name, it would still display the old file because it's saved in the browser's cache. Is there anything to do to send the new file? Maybe a header with the response?

Thanks

jlrdw

1 year ago

Best Answer

Level 75

An older post, but might point you in the right direction:

https://stackoverflow.com/questions/37068359/how-to-force-clean-browser-cache-laravel

3 likes

Ligonsker

1 year ago

Level 8

@jlrdw Awesome, going to try it, looks like it might be it. thank you

2 likes

Ligonsker

1 year ago

Level 8

@jlrdw Update: I had to change the syntax in the old SO answer a bit to make the Cache-Control header be set instead of the default one:

return response()->file($full_path, ['Cache-Control' =>  'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0']);

I am sending a key-value array (header-key/header value) as the second arguement of the file() method

1 like

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