Remove spellchecking for file upload button

[nick-denry]

Storage upload button has unwanted spell checking in Firefox 59.0.2 if btn text clicked.

This happens because button has contenteditable attribute set to true. For me it woks with contenteditable attribute set to false via browser debug panel, but if it is really needed, html5 attribute spellcheck="false" should be set.

https://html.spec.whatwg.org/multipage/interaction.html#spelling-and-grammar-checking

[nadar]

@nick-denry @TheMaaarc I have never seen such a correction. But if spellcheck="false" works, we should do this maybe.

[nick-denry]

I guess that problem will occur only at Linux i18n versions of FF, cause spellchecking language there is set to English by default no matter what the real FF UI or pages language is. So, it's maybe a small percentage of users affected, but there is no need for spellchecking anyway.

[nadar]

would you like to send a PR @nick-denry?

btw: https://caniuse.com/#feat=spellcheck-attribute

[nick-denry]

@nadar I'm a bit late, sorry. Stackoverflow says that spellcheking on mobile browsers can be disabled too.

Have a look on this https://stackoverflow.com/a/254716 pls. Should we do that?

[nadar]

mobile browser should respect spellcheck=false.

[nick-denry]

mobile browser should respect spellcheck=false.

No. Information from your link https://caniuse.com/#feat=spellcheck-attribute

The partial support in mobile browsers results from their OS generally having built-in spell checking instead of using the wavy underline to indicate misspelled words. spellcheck="false" does not seem to have any effect in these browsers.

Below the table.

[nick-denry]

Why do we need contenteditable="true"?

UPD. We could leave it as is if you want. Or I could do a pr.

[nadar]

contenteditable is because of the drag and drop possibiltie i assume.

Sure we can also provie autocomplete="off" autocorrect="off" autocapitalize="off" if you like. Please send a PR.