Inconsistent SVG rendering between desktop and mobile - is Arial a web-safe font in SVG?

Question

I have an SVG which is predominantly text.

It is rendering identically (and correctly) in Firefox 53 and Chrome 58 on Windows 7.

It is rendering identically (but incorrectly) in Firefox Mobile 53 and Chrome Mobile 58 on Android 6.

The incorrect rendering is related to spacing - two non-text elements are incorrectly positioned and one non-text element is wider than it ought to be.

My guess is that the font is rendering differently - but would Arial on Android 6 render differently from Arial on Windows 7?

Here is my SVG:

<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink"
     viewbox="0 0 805 120">

<defs>

<filter id="shadow" x="0" y="0">
<feOffset result="offOut" dx="2" dy="2" />
<feColorMatrix result="matrixOut" values="0.2 0 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 0 0 0 1 0" />
<feGaussianBlur result="blurOut" stdDeviation="2" />
<feBlend in="SourceGraphic" mode="normal" />
</filter>

<style type="text/css"><![CDATA[

svg {
font-family: arial;
font-size: 84px;
font-weight: 900;
text-transform: uppercase;
}

text, rect, path {
fill: rgb(0, 75, 165);
stroke: rgb(30, 40, 90);
stroke-width: 1;
}

rect + text {
fill: rgb(255, 255, 255);
}

a:nth-of-type(2) rect {
stroke: none;
fill: rgb(255, 255, 255);
}

path {
transform: translate(414px, 12px);
}


]]></style>
</defs>

<a xlink:href="http://handsoffhri.org/"><text x="0" y="70" filter="url(#shadow)">#Hands</text><rect x="396" y="0" width="200" height="80" /><text x="406" y="70">Off</text><text x="603" y="70" filter="url(#shadow)">HRI</text></a>

<a xlink:href="http://handsoffnhs.org/">
<rect x="426" y="20" width="30" height="40" />
<path d="M 17.923077,46.076923 C 14.343392,42.497239 14.27418,40.818155 17.53034,36.54911 19.670795,33.742828 19.964561,32.558959 19.43687,28.865832 19.093774,26.464624 18.091959,22.925 17.210613,21 15.473393,17.205632 14.946739,8.8090066 16.395225,8 c 0.492374,-0.275 1.522812,1.75 2.289861,4.5 0.76705,2.75 1.785893,5.9 2.264097,7 0.478204,1.1 1.121144,2.7875 1.428755,3.75 0.388325,1.215052 1.601353,1.75 3.968232,1.75 1.874918,0 3.94672,0.647984 4.604006,1.439966 0.657286,0.791981 2.129739,1.579481 3.272118,1.75 3.300549,0.492661 6.095959,4.949339 4.942528,7.879795 C 38.638723,37.406393 37.617787,40.525 36.896075,43 c -1.470078,5.04141 -2.354638,5.96259 -5.746769,5.984687 -2.184572,0.01423 -2.312807,-0.285031 -1.814586,-4.234687 0.29486,-2.3375 0.828492,-5.625597 1.18585,-7.306882 0.910327,-4.282879 -1.674633,-6.518656 -4.539328,-3.926143 -2.445773,2.213395 -2.522575,5.352525 -0.231242,9.451617 1.687087,3.018122 1.680216,3.182812 -0.19113,4.581039 -2.817812,2.105407 -4.353952,1.809133 -7.635793,-1.472708 z M 5.9073963,33.25 2.6076082,29.5 5.0157824,29.152671 C 7.7278899,28.761505 11,32.019342 11,35.110784 11,37.937782 9.573836,37.416676 5.9073963,33.25 Z M 41.007272,27 c 0.549073,-1.375 1.491079,-3.7375 2.093346,-5.25 0.602268,-1.5125 1.726011,-2.75 2.497207,-2.75 2.311553,0 1.576924,2.264983 -2.108223,6.5 -2.678238,3.077864 -3.250499,3.423665 -2.48233,1.5 z m -8.000683,-3.75 c 0.0036,-0.9625 0.900659,-3.1 1.993411,-4.75 1.092752,-1.65 1.989787,-4.4074 1.993411,-6.127555 0.0073,-3.4695992 2.322706,-6.2880071 3.543292,-4.3130587 0.626634,1.0139159 -1.08136,7.8982867 -3.644702,14.6906137 -1.001533,2.653854 -3.894924,3.026194 -3.885412,0.5 z m -6.936221,-3.118517 c -0.55,-1.027684 -0.689818,-2.1787 -0.310706,-2.557811 0.379112,-0.379112 0.559103,-3.58828 0.39998,-7.131483 C 25.922072,5.152178 26.148965,4 27.42827,4 c 1.304453,0 1.537588,1.4643706 1.432844,9 -0.123753,8.903267 -0.849702,10.758358 -2.790746,7.131483 z" id="path3690" />
</a>

</svg>

What do I need to explicitly declare in my XML, in order that the SVG renders identically between desktop and mobile? Thanks.

Answer 1

Better to convert text to path interpretation (it's actual not only for SVG, but for any design element; a basic recommendation from Corel/A.Illustrator).

Additional way is to import required fonts (by using Google Fonts or internal files in woff/woff2/eot/ttf/svg group). Please, note, that the current solution is working only for <object> or inline-svg (not workable for <img>):

<defs>
    <style type="text/css">
        @font-face {
            font-family: Arial;
            src: url('font_path/arial-like-font.woff');
        }
    </style>
</defs>