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Is possible to add a <meta> tag for my Lightning application?

Within the Salesforce1 mobile application my iPhone turns a custom-formatted date visualization into a hyperlink to create a native calendar entry. As described here you can prevent this by adding

<meta name="format-detection" content="date=no">

to your webpage, but as I don't have access to the generated HTML <head>-section directly is there another way defining this within a Lightning Component?

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  • maybe manually add meta tag with javascript?
    – edelrabe
    Commented Mar 31, 2016 at 14:06
  • 1
    I am not sure if that is "allowed" in terms of security review for managed packages which states: "Components should not modify DOM elements not belonging to the component (neither parents nor children)" see developer.salesforce.com/page/Requirements_Checklist
    – Christian Menzinger
    Commented Mar 31, 2016 at 15:57

2 Answers 2

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5

you can get the response here

Two Options

1.-

If you are building a Community, You can Add it from

All Communities -> Builder -> Settings -> Advanced -> Edit Head Markup

2.-

If you are building a Standard Lightning APP, You can Add it from Javascript, but you dont need to use JQuery (I think is your problem).

In a Lightning App you have the following (App Component)

> <aura:application template="c:test_empty_template">
> 
>     <aura:handler name="init" value="{!this}" action="{!c.doInit}" />   <header class="tlf-header">
>     <div class="tlf-header__top"> ...

(App Controller)

> ({
>             doInit : function(component, event, helper) {
>                 var meta = document.createElement("meta");
>                 meta.setAttribute("name", "format-detection");
>                 meta.setAttribute("content", "date=no");
>                 document.getElementsByTagName('head')[0].appendChild(meta);
> 
>     } })

And viewport is injected in the application Head enter image description here

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Update - this answer is about adding meta to Visualforce pages, not lightning components as originally asked

This seems to be a limitiation in Visualforce and Apex. Disclosure: I'm new to VF / Apex but very experienced in HTML. There are Apex-approved ways of adding scripts and stylesheets to the head of a document with the <apex:includeScript /> and <apex:stylesheet /> tags.

But there's no equivalent for adding meta as far as I know.

You can, as a type of hack, insert the <meta ... > at the top of the VF page and it may work. I've done a similar quick workaround with the <meta viewport...> element for responsive pages on mobile devices, and it works.

However, this is technically invalid markup.

A related answer at https://salesforce.stackexchange.com/a/5412/27617 has more details about adding meta

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  • FYI, your answer is about Visualforce. This question is about Lightning Components. :-)
    – pchittum
    Commented Apr 1, 2016 at 17:29
  • Ah, I see. Missed that. I'm not experienced with lighnitng components yet, wish I could help. Will update answer to clarify
    – jpostdesign
    Commented Apr 1, 2016 at 18:11

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