plotly · emilykl · Jun 8, 2026 · Jun 8, 2026 · Jun 8, 2026 · Jun 8, 2026
diff --git a/draftlogs/7623_change.md b/draftlogs/7623_change.md
@@ -0,0 +1 @@
+- Remove all `*src` attributes, as well as `layout.hidesources` attribute, from the schema. Change signature of `plots.graphJson()` function to remove `mode` argument [[#7623](https://github.com/plotly/plotly.js/pull/7623)]
diff --git a/draftlogs/7812_remove.md b/draftlogs/7812_remove.md
@@ -0,0 +1 @@
+- Remove config attributes `showLink`, `linkText`, `sendData`, `showSources`, and `showEditInChartStudio`, as well as trace attribute `stream`, since all of these were associated with Chart Studio and are no longer needed [[#7812](https://github.com/plotly/plotly.js/pull/7812)]
diff --git a/src/plot_api/helpers.js b/src/plot_api/helpers.js
@@ -354,7 +354,7 @@ function emptyContainer(outer, innerStr) {
 // swap all the data and data attributes associated with x and y
 exports.swapXYData = function (trace) {
     var i;
-    Lib.swapAttrs(trace, ['?', '?0', 'd?', '?bins', 'nbins?', 'autobin?', '?src', 'error_?']);
+    Lib.swapAttrs(trace, ['?', '?0', 'd?', '?bins', 'nbins?', 'autobin?', 'error_?']);
     if (Array.isArray(trace.z) && Array.isArray(trace.z[0])) {
         if (trace.transpose) delete trace.transpose;
         else trace.transpose = true;

diff --git a/src/plot_api/plot_api.js b/src/plot_api/plot_api.js
@@ -1564,9 +1564,9 @@ function _restyle(gd, aobj, traces) {
                     labelsTo = 'y';
                     valuesTo = 'x';
                 }
-                Lib.swapAttrs(cont, ['?', '?src'], 'labels', labelsTo);
+                Lib.swapAttrs(cont, ['?'], 'labels', labelsTo);
                 Lib.swapAttrs(cont, ['d?', '?0'], 'label', labelsTo);
-                Lib.swapAttrs(cont, ['?', '?src'], 'values', valuesTo);
+                Lib.swapAttrs(cont, ['?'], 'values', valuesTo);
 
                 if (oldVal === 'pie' || oldVal === 'funnelarea') {
                     nestedProperty(cont, 'marker.color').set(nestedProperty(cont, 'marker.colors').get());

diff --git a/src/plot_api/plot_schema.js b/src/plot_api/plot_schema.js
@@ -539,29 +539,16 @@ function getFramesAttributes() {
 }
 
 function formatAttributes(attrs) {
-    mergeValTypeAndRole(attrs);
+    setRole(attrs);
     formatArrayContainers(attrs);
     stringify(attrs);
 
     return attrs;
 }
 
-function mergeValTypeAndRole(attrs) {
-    function makeSrcAttr(attrName) {
-        return {
-            valType: 'string',
-            description: 'Sets the source reference on Chart Studio Cloud for `' + attrName + '`.',
-            editType: 'none'
-        };
-    }
-
+function setRole(attrs) {
     function callback(attr, attrName, attrs) {
-        if(exports.isValObject(attr)) {
-            if(attr.arrayOk === true || attr.valType === 'data_array') {
-                // all 'arrayOk' and 'data_array' attrs have a corresponding 'src' attr
-                attrs[attrName + 'src'] = makeSrcAttr(attrName);
-            }
-        } else if(isPlainObject(attr)) {
+        if(!exports.isValObject(attr) && isPlainObject(attr)) {
             // all attrs container objects get role 'object'
             attr.role = 'object';
         }

diff --git a/src/plot_api/to_image.js b/src/plot_api/to_image.js
@@ -170,7 +170,7 @@ function toImage(gd, opts) {
             }
 
             if(format === 'full-json') {
-                var json = plots.graphJson(clonedGd, false, 'keepdata', 'object', true, true);
+                var json = plots.graphJson(clonedGd, false, 'object', true, true);
                 json.version = version;
                 json = JSON.stringify(json);
                 cleanup();

diff --git a/src/plots/layout_attributes.js b/src/plots/layout_attributes.js
@@ -318,17 +318,6 @@ module.exports = {
             'other locales may alter this default.'
         ].join(' ')
     },
-    hidesources: {
-        valType: 'boolean',
-        dflt: false,
-        editType: 'plot',
-        description: [
-            'Determines whether or not a text link citing the data source is',
-            'placed at the bottom-right cored of the figure.',
-            'Has only an effect only on graphs that have been generated via',
-            'forked graphs from the Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise).'
-        ].join(' ')
-    },
     showlegend: {
         // handled in legend.supplyLayoutDefaults
         // but included here because it's not in the legend object

diff --git a/src/plots/plots.js b/src/plots/plots.js
@@ -139,7 +139,7 @@ plots.sendDataToCloud = function(gd) {
             name: 'data'
         });
 
-    hiddenformInput.node().value = plots.graphJson(gd, false, 'keepdata');
+    hiddenformInput.node().value = plots.graphJson(gd, false);
     hiddenform.node().submit();
     hiddenformDiv.remove();
 
@@ -1318,7 +1318,6 @@ plots.supplyLayoutGlobalDefaults = function(layoutIn, layoutOut, formatObj) {
     coerce('paper_bgcolor');
 
     coerce('separators', formatObj.decimal + formatObj.thousands);
-    coerce('hidesources');
 
     coerce('colorway');
 
@@ -1964,7 +1963,7 @@ plots.didMarginChange = function(margin0, margin1) {
 /**
  * JSONify the graph data and layout
  *
- * This function needs to recurse because some src can be inside
+ * This function needs to recurse because some objects can be inside
  * sub-objects.
  *
  * It also strips out functions and private (starts with _) elements.
@@ -1973,18 +1972,12 @@ plots.didMarginChange = function(margin0, margin1) {
  *
  * @param gd The graphDiv
  * @param {Boolean} dataonly If true, don't return layout.
- * @param {'keepref'|'keepdata'|'keepall'} [mode='keepref'] Filter what's kept
- *      keepref: remove data for which there's a src present
- *          eg if there's xsrc present (and xsrc is well-formed,
- *          ie has : and some chars before it), strip out x
- *      keepdata: remove all src tags, don't remove the data itself
- *      keepall: keep data and src
  * @param {String} output If you specify 'object', the result will not be stringified
  * @param {Boolean} useDefaults If truthy, use _fullLayout and _fullData
  * @param {Boolean} includeConfig If truthy, include _context
  * @returns {Object|String}
  */
-plots.graphJson = function(gd, dataonly, mode, output, useDefaults, includeConfig) {
+plots.graphJson = function(gd, dataonly, output, useDefaults, includeConfig) {
     // if the defaults aren't supplied yet, we need to do that...
     if((useDefaults && dataonly && !gd._fullData) ||
             (useDefaults && !dataonly && !gd._fullLayout)) {
@@ -2001,7 +1994,6 @@ plots.graphJson = function(gd, dataonly, mode, output, useDefaults, includeConfi
         }
         if(Lib.isPlainObject(d)) {
             var o = {};
-            var src;
             Object.keys(d).sort().forEach(function(v) {
                 // remove private elements and functions
                 // _ is for private, [ is a mistake ie [object Object]
@@ -2013,21 +2005,6 @@ plots.graphJson = function(gd, dataonly, mode, output, useDefaults, includeConfi
                     return;
                 }
 
-                // look for src/data matches and remove the appropriate one
-                if(mode === 'keepdata') {
-                    // keepdata: remove all ...src tags
-                    if(v.slice(-3) === 'src') {
-                        return;
-                    }
-                } else if(mode !== 'keepall') {
-                    // keepref: remove sourced data but only
-                    // if the source tag is well-formed
-                    src = d[v + 'src'];
-                    if(typeof src === 'string' && src.indexOf(':') > 0) {
-                        return;
-                    }
-                }
-
                 // OK, we're including this... recurse into it
                 o[v] = stripObj(d[v], keepFunction);
             });

diff --git a/src/snapshot/cloneplot.js b/src/snapshot/cloneplot.js
@@ -26,7 +26,6 @@ function cloneLayoutOverride(tileClass) {
         case 'thumbnail':
             override = {
                 title: {text: ''},
-                hidesources: true,
                 showlegend: false,
                 borderwidth: 0,
                 bordercolor: '',

diff --git a/src/types/generated/schema.d.ts b/src/types/generated/schema.d.ts
@@ -16254,7 +16254,6 @@ export interface Layout {
         yside?: 'left' | 'left plot' | 'right plot' | 'right';
     };
     height?: number;
-    hidesources?: boolean;
     hoveranywhere?: boolean;
     hoverdistance?: number;
     hoverlabel?: {

diff --git a/tasks/generate_schema_types.mjs b/tasks/generate_schema_types.mjs
@@ -455,16 +455,6 @@ function valTypeToTS(attr, attrPath) {
 // Structural helpers
 // ---------------------------------------------------------------------------
 
-/**
- * Returns true if key looks like an auto-generated *src attribute.
- * These are created for Chart Studio Cloud and shouldn't appear in types.
- */
-function isSrcAttr(key, siblings) {
-    if (!key.endsWith('src')) return false;
-    const base = key.slice(0, -3);
-    return base in siblings;
-}
-
 /**
  * Detect a linked-to-array container in the serialized schema.
  *
@@ -508,7 +498,6 @@ function containerFingerprint(attrs) {
     for (const key of Object.keys(attrs).sort()) {
         if (META_KEYS.has(key)) continue;
         const val = attrs[key];
-        if (isSrcAttr(key, attrs)) continue;
         if (val == null) continue;
 
         if (typeof val === 'string') {
@@ -546,7 +535,6 @@ function collectFingerprints(attrs, collector) {
     for (const key of Object.keys(attrs).sort()) {
         if (META_KEYS.has(key)) continue;
         const val = attrs[key];
-        if (isSrcAttr(key, attrs)) continue;
         if (val == null || typeof val !== 'object' || val.valType) continue;
 
         let containerAttrs;
@@ -586,7 +574,6 @@ function countProperties(attrs) {
     let count = 0;
     for (const key of Object.keys(attrs)) {
         if (META_KEYS.has(key)) continue;
-        if (isSrcAttr(key, attrs)) continue;
         const val = attrs[key];
         if (val == null) continue;
         if (typeof val === 'string' || typeof val !== 'object') {
@@ -759,9 +746,6 @@ function attrsToProperties(attrs, indent, pathPrefix, sharedTypes, fieldOverride
 
         const val = attrs[key];
 
-        // Skip src attributes
-        if (isSrcAttr(key, attrs)) continue;
-
         // Skip null/undefined
         if (val == null) continue;
 
@@ -928,7 +912,6 @@ function generateLayoutProperties(layoutAttrs, sharedTypes, subplotGroups, array
     for (const key of Object.keys(layoutAttrs).sort()) {
         if (META_KEYS.has(key)) continue;
         const val = layoutAttrs[key];
-        if (isSrcAttr(key, layoutAttrs)) continue;
         if (val == null) continue;
 
         // String literal

diff --git a/test/image/mocks/0.json b/test/image/mocks/0.json
@@ -1217,7 +1217,6 @@
     "barmode": "stack",
     "bargap": 0.2,
     "bargroupgap": 0,
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/1.json b/test/image/mocks/1.json
@@ -609,7 +609,6 @@
     "hovermode": "x",
     "dragmode": "zoom",
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/10.json b/test/image/mocks/10.json
@@ -256,7 +256,6 @@
     "plot_bgcolor": "rgb(255, 255, 255)",
     "hovermode": "x",
     "dragmode": "zoom",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/11.json b/test/image/mocks/11.json
@@ -232,7 +232,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/12.json b/test/image/mocks/12.json
@@ -505,7 +505,6 @@
     "bargroupgap": 0,
     "boxmode": "overlay",
     "separators": ".,",
-    "hidesources": false,
     "selections": [
       {
         "x0": 150,

diff --git a/test/image/mocks/13.json b/test/image/mocks/13.json
@@ -328,7 +328,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/14.json b/test/image/mocks/14.json
@@ -335,7 +335,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/15.json b/test/image/mocks/15.json
@@ -270,7 +270,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/17.json b/test/image/mocks/17.json
@@ -632,7 +632,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/18.json b/test/image/mocks/18.json
@@ -1235,7 +1235,6 @@
     "bargroupgap": 0,
     "boxmode": "overlay",
     "separators": ".,",
-    "hidesources": false,
     "yaxis2": {
       "title": {
         "text": "sepal width",

diff --git a/test/image/mocks/19.json b/test/image/mocks/19.json
@@ -153,7 +153,6 @@
     "bargroupgap": 0,
     "boxmode": "overlay",
     "separators": ".,",
-    "hidesources": false,
     "yaxis2": {
       "title": {
         "text": "Click to enter Y2 axis title"

diff --git a/test/image/mocks/21.json b/test/image/mocks/21.json
@@ -485,7 +485,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/22.json b/test/image/mocks/22.json
@@ -288,7 +288,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/23.json b/test/image/mocks/23.json
@@ -144,7 +144,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/24.json b/test/image/mocks/24.json
@@ -183,7 +183,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/25.json b/test/image/mocks/25.json
@@ -178,7 +178,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/26.json b/test/image/mocks/26.json
@@ -21207,7 +21207,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".,",
-    "hidesources": false
+    "separators": ".,"
   }
 }
diff --git a/test/image/mocks/27.json b/test/image/mocks/27.json
@@ -347,7 +347,6 @@
     "bargap": 0.2,
     "bargroupgap": 0,
     "boxmode": "overlay",
-    "separators": ".",
-    "hidesources": false
+    "separators": "."
   }
 }
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		- Remove all `*src` attributes, as well as `layout.hidesources` attribute, from the schema. Change signature of `plots.graphJson()` function to remove `mode` argument [[#7623](https://github.com/plotly/plotly.js/pull/7623)]
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		- Remove config attributes `showLink`, `linkText`, `sendData`, `showSources`, and `showEditInChartStudio`, as well as trace attribute `stream`, since all of these were associated with Chart Studio and are no longer needed [[#7812](https://github.com/plotly/plotly.js/pull/7812)]